Discussing the article: "Larry Williams Market Secrets (Part 13): Automating Hidden Smash Day Reversal Patterns"
Thanks for idea and shared codes..
with the exact same setting EA performed 4 BUY trades and 2 SL / 2 TP profit 508 usd // i think this caused by firm differences ?!?
tried D1 / H1 / M5 as EA-TF's but exactly same trades taken at same dates and same SL / TP results
You are missing trading opportunities:
- Free trading apps
- Over 8,000 signals for copying
- Economic news for exploring financial markets
Registration
Log in
You agree to website policy and terms of use
If you do not have an account, please register
Check out the new article: Larry Williams Market Secrets (Part 13): Automating Hidden Smash Day Reversal Patterns.
The article builds a transparent MQL5 Expert Advisor for Larry Williams’ hidden smash day reversals. Signals are generated only on new bars: a setup bar is validated, then confirmed when the next session trades beyond its extreme. Risk is managed via ATR or structural stops with a defined risk-to-reward, position sizing can be fixed or balance-based, and direction filters plus a one-position policy ensure reproducible tests.
In Long Term Secrets to Short Term Trading, Larry Williams introduces the Hidden Smash Day as a quieter, more “internal” version of the classic Smash Day. On the chart it looks simple: the bar doesn’t necessarily break an obvious prior high or low, yet it hints at exhaustion because the market fails to carry through when the next session tests the level. The setup is intentionally subtle, and Williams is clear about the key point: the Hidden Smash Day bar is not the trade—the trade only exists after confirmation on the following session, when price breaks the hidden level.
That subtlety is exactly why the pattern becomes frustrating in manual trading. As soon as you try to execute it by hand, it turns into an argument about definitions: where exactly does the “lower/upper portion of the range” begin, what counts as confirmation, whether the stop belongs on the smash bar structure or should expand with volatility, and how to avoid stacking overlapping positions when signals cluster.
If you’re approaching Williams’ work as an algo trader or developer, you don’t need interpretation—you need formal rules: identical conditions across instruments, the same next-session confirmation logic every time, and risk management that is reproducible in the strategy tester. The goal of this article is to translate Hidden Smash Day into unambiguous rules and implement them in MQL5 so that the signal, entry, SL/TP, and position size are calculated automatically and executed consistently on every run—without discretionary wiggle room.
Author: Chacha Ian Maroa