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Double top pattern: What 56 years of S&P 500 data show
A double top is two peaks at about the same price with a dip between them. It counts as confirmed when price closes below the low of that dip, the…
Tag: backtesting
37 posts tagged backtesting, newest first.
37 posts · page 2 of 7
Blog
Best day to buy stocks: What 66 years of S&P 500 data show
The best day of the week to buy stocks depends on which decades you look at, and for a long-term investor it barely matters. I checked every trading…
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Dollar cost averaging vs lump sum: What 38 years of S&P 500 data show
Dollar cost averaging means investing a sum in equal parts over several months instead of all at once. I tested both on the S&P 500 with dividends…
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Average true range: How ATR works and what ATR stops did
The average true range (ATR) is the average size of a market’s daily move, gaps included. On 23 October 2026 it was 0.95% of the price for the S&P…
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Trailing stop loss: I tested every size from 5% to 40%
A trailing stop loss sells when the price falls a set percentage below its highest point since you bought. I tested every size from 5% to 30% on the…
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Inside bar: What a breakout test on the S&P 500 shows
An inside bar is a bar whose high is lower and whose low is higher than the bar before it, so the whole day fits inside the previous one. Traders…