Has the opening range breakout actually worked on $OPK? Over the last two years we backtested 667 opening range trades on Opko Health Inc., covering the 5, 15 and 30-minute ranges, long and short. The full record is below, winners and losers both.
OPK opening range breakout win rates
| Opening range | Direction | Win rate | Trades | Expectancy (pts) | Avg win (pts) | Avg loss (pts) |
|---|---|---|---|---|---|---|
| 5-minute | Long | 51% | 98 | 0.00 | 0.02 | -0.02 |
| 5-minute | Short | 55% | 92 | 0.00 | 0.02 | -0.02 |
| 15-minute | Long | 57% | 116 | 0.00 | 0.03 | -0.02 |
| 15-minute | Short | 51% | 110 | 0.00 | 0.02 | -0.02 |
| 30-minute | Long | 46% | 123 | -0.00 | 0.02 | -0.03 |
| 30-minute | Short | 53% | 128 | 0.00 | 0.02 | -0.02 |
How to read the OPK numbers
The strongest configuration was the 15-minute long break: 57% winners across 116 trades. The short side carried the edge overall: 53% winners versus 51% for the other direction. After wins and losses netted out, 5 of the 6 configurations carried positive expectancy per trade.
Backtest method
Entry is the break of the opening range: above the range high for longs, below the range low for shorts. The target projects one full range width from the break and the stop sits at the opposite side of the range, so risk and reward are both defined by the range itself. The window is the last 730 calendar days ending July 7, 2026, every qualifying trade counted, with no commissions or slippage modeled.
This is a historical record, not a prediction. Win rates drift as volatility regimes change, and a strong two-year record on $OPK does not guarantee the next break follows it. Use it as context for sizing and expectations, not as a signal.
Keep going
- Today’s pre-market ORB watchlist, rebuilt every trading morning
- Opening range breakout statistics for every symbol we track
- Run your own ORB backtest with different targets, stops and ranges
- Compare: $OPEN opening range breakout stats
- Compare: $ORCL opening range breakout stats