https://traderpier.com/blog How to practice on replayed sessions, review every trade and test a strategy before you trade it. US stocks and ETFs. en-us Thu, 08 Oct 2026 00:00:00 GMT https://traderpier.com/blog/move-a-trading-spreadsheet-into-a-journal https://traderpier.com/blog/move-a-trading-spreadsheet-into-a-journal Thu, 08 Oct 2026 00:00:00 GMT A spreadsheet row tells you what a trade made, not how close it came to losing. How to move your trades into a journal and watch each one on its chart. Trading process https://traderpier.com/blog/when-the-best-version-keeps-changing https://traderpier.com/blog/when-the-best-version-keeps-changing Wed, 07 Oct 2026 00:00:00 GMT We let an optimizer pick the best version of an opening range breakout on SPY six times, a few months apart, and it picked three different ones. Backtesting https://traderpier.com/blog/review-a-trade-with-market-replay https://traderpier.com/blog/review-a-trade-with-market-replay Mon, 05 Oct 2026 00:00:00 GMT Replay a trade from your journal, see what happened after you got out, then redo it and try something different on the same day. Trading process