On what time scales are stock support and resistance levels meaningful?
Support and resistance only works as a self-fulfilling prophecy. If everyone trading that stock agrees there's a resistance at so-and-so level, and it is on such-and-such scale, then they will trade accordingly and there will really be a support or resistance. So while you can identify them at any time scale (although as a rule the time scale on which you observed them should be similar to the time scale on which you intend to use them), it's no matter unless that's what all the other traders are thinking as well. Especially if there are multiple possible S/P levels for different time scales, there will be no consensus, and the whole system will break down as one cohort ruins the other group's S/P by not playing along and vice versa. But often fundamentals are expected to dominate in the long run, so if you are thinking of trades longer than a year, support and resistance will likely become meaningless regardless. It's not like that many people can hold the same idea for that long anyhow. "Stock support and resistance levels mean that historically, there was ""heavy"" buying/selling at those levels. This suggests, but does not guarantee, that ""someone"" will buy at ""support"" levels, and ""someone"" will sell at ""resistance levels. Any ""history"" is meaningful, but most analysts will say that after six months to a year, the impact of events declines the further back in time you go. They can be meaningful for periods as short as days."
"Find a stock screener that has data for the BSE and NSE. You may be able to look directly at volatility but a good stock screener will have the technical analysis indicator called ""average true range"", ATR for short. This will let you see the average range of price moves over several days." The paragraph before on page 115 states: Scaling corresponds to having a weight in the long and   short legs that is different from one and varies over time,   but the strategy is still self-financing. Meaning that the long and short positions are no longer equal due to weighting one side more highly than the other. The weighting of one side (either long or short) is the number between 0.2 and 2 that you mention. "First, I would like to use a better chart.  In my opinion, a close of day line chart obscures a lot of important information.  Here is a daily OHLC log chart:  The initial drop from the 1099.23 close on Oct 3 was to 839.8 intraday, to close at 899.22 on Oct 10.  After this the market was still very volatile and reached a low of 747.78 on Nov 20, closing only slightly higher than this.  It traded as high as 934.70 on Jan 6, 2009, but the whole period of Nov 24 - Feb 13 was somewhat of a trading range of roughly 800-900.  Despite this, the news reports of the time were frequently saying things like ""this isn't going to be a V shaped recovery, it is going to be U shaped.""  The roughly one week dip you see Feb 27 - Mar 9 taking it to an intraday low of 666.79 (only about 11% below the previous low) on first glance appears to be just a continuation of the previous trend.   However... The Mar 10 uptrend started with various news articles (such as this one) which I recall at the time suggested things like reinstating the parts of the Glass–Steagall Act of 1933 which had been repealed by the Gramm–Leach–Bliley Act.  Although these attempts appear to have been unsuccessful, the widespread telegraphing of such attempts in the media seemed to have reversed a common notion which I saw widespread on forums and other places that, ""we are going to be in this mess forever, the market has nowhere to go but down, and therefore shorting the market is a good idea now.""  I don't find the article itself, but one prominent theme was the ""up-tick"" rule on short selling: source From this viewpoint, then, that the last dip was driven not so much by a recognition that the economy was really in the toilet (as this really was discounted in the first drop and at least by late November had already been figured into the price).  Instead, it was sort of the opposite of a market top, where now you started seeing individual investors jump on the band-wagon and decide that now was the time for a foray into selling (short).  The fact that the up-tick rule was likely to be re-instated had a noticeable effect on halting the final slide." Large-scale price range of a stock isn't directly meaningful; that reflects how many shares exist, not just how desirable they are. A stock split, for example, doubles the number of shares everyone holds while cutting the value of each share in half; that's meaningless except that it makes the shares a bit easier to trade in. Change in price is more interesting. In the case of energy companies, that often reflects major changes in energy supply, distribution, use, or how well positioned people feel the company is for the next change in these. Fracking's surge and the questions raised against it, whether a major pipeline will or won't be built, international energy price trends, breakthroughs in renewables... if it might affect energy price, it might affect the company's strength, both absolute and relative to others. In other words, the same kinds of things that affect any stock. Pivots Points are significant levels technical analysts can use to determine directional movement, support and resistance. Pivot Points use the prior period's high, low and close to formulate future support and resistance. In this regard, Pivot Points are predictive or leading indicators. There are at least five different versions of Pivot Points. I will focus on Standard Pivot Points here as they are the simplest. If you are looking to trade off daily charts you would work out your Pivot Points from the prior month's data. For example, Pivot Points for first trading day of February would be based on the high, low and close for January. They remain the same for the entire month of February. New Pivot Points would then be calculated on the first trading day of March using the high, low and close for February. To work out the Standard Pivot Points you use the High, Low and Close from the previous period (i.e. for daily charts it would be from the previous month) in the following formulas: You will now have 5 horizontal lines: P, R1, R2, S1 and S2 which will set the general tone for price action over the next month. A move above the Pivot Point P suggests strength with a target to the first resistance R1. A break above first resistance shows even more strength with a target to the second resistance level R2. The converse is true on the downside. A move below the Pivot Point P suggests weakness with a target to the first support level S1. A break below the first support level shows even more weakness with a target to the second support level S2. The second resistance and support levels (R2 & S2) can also be used to identify potentially overbought and oversold situations. A move above the second resistance level R2 would show strength, but it would also indicate an overbought situation that could give way to a pullback. Similarly, a move below the second support level S2 would show weakness, but would also suggest a short-term oversold condition that could give way to a bounce. This could be used together with a momentum indicator such as RSI or Stochastic to confirm overbought or oversold conditions.  Pivot Points offer a methodology to determine price direction and then set support and resistance levels, however, it is important to confirm Pivot Point signals with other technical analysis indicators, such as candle stick reversal patterns, stochastic and general Support and Resistance Levels in the price action. These pivot points can be handy but I actually haven’t used them for trade setups and entries myself. I prefer to use candle sticks together with stochastic to determine potential turning points and then take out trades based on these. You can then use the Pivot Points Resistance and Support levels to help you estimate profit targets or areas to start becoming cautious and start tightening your stops. Say, for example, you have gone long from a signal you got a few days ago, you are now in profit and the price is now approaching R2 whilst the Stochastic is approaching overbought, you might want to start tightening your stop loss as you might expect some weakness in the price in the near future. If prices continue up you keep increasing your profits, if prices do reverse then you keep the majority of your existing profits. This would become part of your trade management. If you are after finding potential market turning points and take out trades based on these, then I would suggest using candlestick charting reversal patterns for your trade setups. The patterns I like to use most in my trading can be described as either the Hammer or One White Soldier for Bullish reversals and Shooting Star or One Black Crow for Bearish reversals. Below are diagrams of where to place your entries and exits on both Bullish and Bearish reversal patterns. Bullish Reversal Pattern   So after some period of weakness in the price you would look for a bullish day where the price closes above the previous day’s high, you place your buy order here just before market close and place your initial stop just below the low of the day. You would apply this either for an uptrending stock where the price has retracted from or near the trendline or Moving Average, or a ranging stock where price is bouncing off the support line. The trade is reinforced if the Stochastic is in or near the oversold and crossing back upwards, volume on the up day is higher than volume on the down days, and the market as a whole is moving up as well. The benefit with this entry is that you are in early so you capture any bullish move up at the open of the next day, such as gaps. The drawbacks are that you need to be in front of your screen before market close to get your price close to the market close and you may get whipsawed if prices reverse at the open of the next day, thus being stopped out with a small loss. As the price moves up you would move your stop loss to just below the low of each day. Alternative Bullish Reversal Entry  An alternative, entry would be to wait for after market close and then start your analysis (easier to do after market close than whilst the market is open and less emotions involved). Place a stop buy order to buy at the open of next trading day just above the high of the bullish green candle. Your stop is placed exactly the same, just below the low of the green bullish candle. The benefits of this alternative entry include you avoid the trade if the price reverses at the open of next day, thus avoiding a potential small loss (in other words you wait for further confirmation on the next trading day), and you avoid trading during market open hours where your emotions can get the better of you. I prefer to do my trading after market close so prefer this alternative. The drawback with this alternative is that you may miss out on bullish news prior to and at the next open, so miss out on some potential profits if prices do gap up at the open. This may also increase your loss on the trade if the prices gaps up then reverses and hits your stop on the same day. However, if you choose this method, then you will just need to incorporate this into your trading plan as potential slippage. Bearish Reversal Pattern   So after some short period of strength in the price you would look for a bearish day where the price closes below the previous day’s low, you place your sell short order here just before market close and place your initial stop just above the high of the day. You would apply this either for an downtrending stock where the price has retracted from or near the trendline or Moving Average, or a ranging stock where price is bouncing off the resistance line. The trade is reinforced if the Stochastic is in or near the overbought and crossing back downwards, volume on the up day is higher than volume on the up days, and the market as a whole is moving down as well. The benefit with this entry is that you are in early so you capture any bearish move down at the open of the next day, such as gaps. The drawbacks are that you need to be in front of your screen before market close to get your price close to the market close and you may get whipsawed if prices reverse at the open of the next day, thus being stopped out with a small loss. As the price moves down you would move your stop loss to just above the high of each day. Alternative Bearish Reversal Entry   An alternative, entry would be to wait for after market close and then start your analysis (easier to do after market close than whilst the market is open and less emotions involved). Place a stop sell short order to sell at the open of next trading day just below the low of the bearish red candle. Your stop is placed exactly the same, just above the high of the red bearish candle. The benefits of this alternative entry include you avoid the trade if the price reverses at the open of next day, thus avoiding a potential small loss (in other words you wait for further confirmation on the next trading day), and you avoid trading during market open hours where your emotions can get the better of you. I prefer to do my trading after market close so prefer this alternative. The drawback with this alternative is that you may miss out on bearish news prior to and at the next open, so miss out on some potential profits if prices do gap down at the open. This may also increase your loss on the trade if the prices gaps down then reverses and hits your stop on the same day. However, if you choose this method, then you will just need to incorporate this into your trading plan as potential slippage. You could also trade other candle stick patterns is similar ways. And with the long entries you can also use them to get into the market with longer term trend following strategies, you would usually just use a larger stop for longer term trading. To determine the size of your order you would use the price difference between your entry and your stop. You should not be risking more than 1% of your trading capital on any one trade. So if your trading capital is $20,000 your risk per trade should be $200. If you were looking to place your buy at 5.00 and had your initial stop at $4.60, you would divide $200 by $0.40 to get 500 stocks to buy. Using this form of money management you keep your losses down to a maximum of $200 (some trades may be a bit higher due to some slippage which you should allow for in your trading plan), which becomes your R-multiple. Your aim is to have your average win at 3R or higher (3 x your average loss), which will give you a positive expectancy even with a win ratio under 50%. Once you have written down your trading rules you can search stock charts for potential setups. When you find one you can backtest the chart for similar setup over the past few years. For each setup in the past jot down the prices you would have entered at, where you would have set your stop, work out your R, and go day by day, moving your stop as you go, and see where you would have been stopped out. Work out your profit or loss in terms of R for each setup and then add them up. If you get a positive R multiple, then this may be a good stock to trade on this setup. If you get a negative R multiple, then maybe give this stock a miss and look for the next setup. You can setup watch-lists of stocks that perform well for both long setups and short setups, and then trade these stocks when you get a new signal. It can take some time starting off, but once you have got your watch-lists for a particular setup, you just need to keep monitoring those stocks. You can create other watch-lists for other type of setups you have backtested as well. "There may well be several such graphs, I expect googling will turn them up; but the definition of risk is actually quite important here. My definition of risk might not be quite the same as yours, so the relative risk factors would be different. For example: in general, stocks are more risky than bonds.  But owning common shares in a blue-chip company might well be less risky than owning bonds from a company teetering on the edge of bankruptcy, and no single risk number can really capture that. Another example: while I can put all my money in short-term deposits, and it is pretty ""safe"", if it grows at 1% so that my investment portfolio cannot fund my retirement, then I have a risk that I will run out of money before I shuffle off this mortal coil.  How to capture that ""risk"" in a single number? So you will need to better define your parameters before you can prepare a visual aid. Good Luck" You could theoretically use any time period unit, but 1 minute and 30 minute  seem to be the most common and useful.  Especially for active traders.  This also has the added advantage of giving you useful insight into the trade volumes throughout the day; assuming that is also included on the chart.  I think most include that as a bar chart across the bottom. Here is a great example for crude oil on dailyfx:  https://www.dailyfx.com/crude-oil Notice that the chart has time options at the top left which include 1 minute, 30 minutes, 1 hour, and 1 day. A shorter term MA would be used for short term changes in price whilst a long term MA would be used for longer term movements in price.  A 200 day SMA is widely used to determine the trend of the stock, simply a cross above the 200 day SMA would mean the stock may be entering an uptrend and a cross below that the price may be entering a downtrend. If the price is continuosly going above and below in a short period of time it is usually range trading. Then there are EMAs (Expodential Moving Averages) and WMAs (weighted moving averages) which give more emphasis to the latest price data than the earlier price data in the period chosen compared to a SMA. MAs can be used in many different ways, too many to list all here. The best way to learn about them is to read some TA books and articles about them, then choose a couple of strategies where you can use them in combination with a couple of other indicators that are complimentary with each other. Your observation is mostly right, that 1 is a the number around which this varies.  You are actually referencing PEG, P/E to Growth ratio, which is a common benchmark to use to evaluate a stock. The article I link to provides more discussion. "I think that ""memoryless"" in this context of a given stock's performance is not a term of art. IMO, it's an anecdotal concept or cliche used to make a point about holding a stock. Sometimes people get stuck... they buy a stock or fund at 50, it goes down to 30, then hold onto it so they can ""get back to even"". By holding the loser stock for emotional reasons, the person potentially misses out on gains elsewhere." When using the Stochastic Indicator your basic aim is to buy (go long) when the stochastic becomes oversold (goes below 20%) and then the %K line crosses above the %D line at a market low, and to sell (go short) when the stochastic becomes overbought (goes above 80%) and then the %K line crosses below the %D line at a market high. Other indicators or candlestick patters can also be used to further confirm the trade. Below is a chart of a trade I recently took on GUD.AX using the Slow Stochastic in combination with support and resistance levels as well as a candlestick pattern.  When I conducted my stock search on the evening of 28th July 2015, GUD was one of the results from the search that I particularly liked. The Slow Stochastic had just made a crossover in the oversold area just as the price was bouncing off its recent lows at the support line. But what I really like about this opportunity was that there was also a bullish reversal candle (a Hammer) at this short term market bottom. The high for the day was $8.34, so I placed a stop buy order to buy the stock tomorrow if the price opened or moved above this high of today. So I would only buy if the stock hit or moved above $8.35 during the next days trading. So if the stock opened and stayed below the previous day's high I would not buy the stock and my order would be canceled at the end of the day. This is very important because it stops you from getting into trades that don't go in the direction you want. If this happens then you could check the chart again after market close to see if it is still worthwhile to place a new order for the next day. On the 29th July 2015 the stock did open higher at $8.42 (which is where my order got executed) and closed at $8.46. So I ended up buying slightly above my target price but it did move higher on the day, so a successful entry overall. I had placed my initial stop loss at $8.09 (just below the low of the previous day of $8.10). If the trade had gone against me in the following days the most I would have lost was 1% of my total account capital. My target for this trade was $9.86 (just below the resistance line near $10), which would represent a 5% gain against my total account capital (or approx. 16.7% gain on the trade). So my win to loss ratio was 5:1. As you can see from the chart, the next day gapped up at the open and prices continued moving up strongly during the day. The next day was a slightly negative day, and then a few days later, on the 5th August 2015 my target price of $9.86 was reached (with a high of $9.88 for that day), so my order was closed for a total profit of 16.7% on the face value of the trade. However, as I bought on margin (using CFDs) my actual profit on the initial margin I had invested was 167%. My total time in the trade was 7 days, and I spent about an hour in the evening doing my searches and placing my orders, then less than 10 minutes managing the trade each evening after market close. The stock did go up a bit further after my profit target was reached, but the day after that the price started to fall as the price hit the resistance line and the Slow Stochastic did a crossover in the overbought area. Overall, this was a very ideal trade and I was very happy with it. Not all my trades reach my profit targets and I may get stopped out at a smaller profit or I might make a small loss (as I move my stops up as the price moves up). The key to successful trading over the long term is to keep you losses small and let your profits run (with my longer term trend trading I don't have profit targets and let my profits run until I get stopped out, but with my shorter term trading I do use a profit target usually 5 or 6 times the size of my initial stop). If you have an average win to average loss ratio of 3:1 or higher and have a success rate of 50% winners you will make money over the long term. I think it may be best to take everything you're asking line-by-line. Once you buy stocks on X day of the month, the chances of stocks never actually going above and beyond your point of value on the chart are close to none. This is not true. Companies can go out of business, or take a major hit and never recover.  Take Volkswagen for example, in 2015 due to a scandal they were involved in, their stocks went downhill. Now their stocks are starting to rise again. The investors goal is not to wait as long as necessary to make a profit on every stock purchase, but to make the largest profit possible in the shortest time possible. Sometimes this means selling a stock before it recovers (if it ever does). I think the problem with most buyers is that they desire the most gain they can possibly have. However, that is very risky. This can be true. Every investor needs to gauge the risk they're willing to take and high-gain investments are riskier.  Therefore, it's better to be winning [small/medium] amounts of money (~)100% of the time than [any] amount of money <~25%. Safer investments do tend to yield more consistent returns, but this doesn't mean that every investor should aim for low-yield investments. Again, this is driven by the investor's risk tolerance. To conclude, profitable companies' stock tends to increase over time and less aggressive investments are safer, but it is possible to lose from any stock investment. I agree with @Turukawa that the x-axes need to be the same to make a direct comparison.  However, the graphs you linked make me think of introductory calculus:  If you time averaged plots, speculative investments (gold, housing) seem to have many large concave up time periods and the dow jones has many concave down sections.  Using the concavity test: If the first derivative tells you about the rate of change, the second derivative tells you about the rate of change of rate of change.  Remember back to Physics 101:  1st derivative is velocity & second derivative is acceleration.   It would be interesting to have the same time scales for your plots & compare these accelerations between the two.  I suspect the more volatile investments would have larger (in magnitude) accelerations during boom/bust cycles than less speculative investments. A few things: time in trade, price maximum move against you during that time, price maximum move for you during that time, Where you got out in relation to maximum of the move (how much of the move did you capture in that trade -- from lowest to highest), what was your risk to return (R) -- return / risk. If you had a trading system, and by trading system I mean the criteria setup that you will take a trade on, then once a setup comes up at what price will you open the trade and at what price you will close the trade. As an example, if you want to buy once price breaks through resistance at $10.00 you might place your buy order at $10.05. So once you have a written trading system you could do backtesting on this system to get a percentage of win trades to loosing trades, your average win size to average lose size, then from this you could work out your expectancy for each trade that you follow your trading system on.