TradingView
DojiEmoji
Oct 28, 2021 1:15 PM

Mean Reversion Strategy v2 [KL] 

PayPal Holdings, Inc.NASDAQ

描述

Description:
This strategy will enter a position when the following conditions are met:
a) Main signal: When source data (ATR) diverts from its moving average value, and
b) Confirmation: If predicted direction of trend is favorable.

Assumptions:
During periods of high price volatility, ATR diverts from its moving average value. Eventually, ATR should revert. But since just knowing the magnitude of increase/decrease of ATR does not indicate a trend signal, we need to introduce a model to predict the current trend.

In short:
Trend Prediction: This strategy calculates the expected logarithmic return of the security (the "Drift") and considers prices to be moving in uptrend if the drift curve is upward sloping.
Assessment of ATR diversion: To determine "yes/no" regarding whether ATR at a given point in time has diverted, this script conducts a two-tailed hypothesis test at each candlestick period. The null hypothesis (H0) is that the fast moving average value should equal the slow moving average value (say, denoted as H0: atr14 == atr28; it is assumed that atr28 is more meaningful for the purpose of describing the current trend because it has a larger sample size). Investopedia has an article summarizing this topic <link>.

Exit Condition:
When trailing stop loss hits.

Previous version:
This strategy is based on Version 1 published back in September <link>. This older version considers +/- one standard deviation to be the critical values relative to average ATR when testing whether ATR has diverted from the mean. This does not take Standard Error ("SE") into account. As a result, the threshold is often too wide and it generates too many entry signals.

版本注释

• added annotations to the chart

版本注释

Added explanations (// in-line comments in codes) in the block labeled "ATR diversion test".

版本注释

Added profit taking levels. Also amended risk management strategy.

Changes:
- Order size is based on user-defined percentage of committed capital
- Profit taking over 3 levels based on risk to reward ratio (i.e. 1R, 2R, 3R). When a target is met at each tier, strategy will close out one third of current position size. As for remainders of unrealized profits (i.e. already taken once at 1R, but not yet reach 2R or 3R), unreached targets will eventually be closed at the trailing stoploss price

版本注释

Fixed a bug relating to profit taking over 3 levels (described in the previous update).

版本注释

Added dropdown menu to select confidence interval (previously had to manually key in critical value)
评论
Mohamed3nan
thanks
nps1960
why no sell(short) trade is taken by this strategy ? i don't understand ,any clarification
DojiEmoji
@nps1960, That's a good question. Quick answer to it is that I haven't backtested it enough yet. Maybe in v3!
nps1960
@DojiEmoji, great work by the way, just curious and wanted to know, if i am missing anything, thanks for quick reply.
Pipfiend
@DojiEmoji, has v3 been published yet? thanks
Rizalsiswono
teach me this system
Pipfiend
Nice script, thanks
irtrader_425798
Hello, thank u so much just is it suitable for crypto market?
DojiEmoji
@irtrader_425798, Yes. This strategy will work for crypto markets. However, one thing you'll need to do is set initial capital HIGHER because size of position upon entry is calculated based on % of initial capital. Given BTC price is high, default 5% of initial 100k (ie. 5k) is not enough to buy one single BTC, therefore TradingView's backtester will not enter a position.
irtrader_425798
@DojiEmoji, Thank u so much
More power
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