Stock Surge & Post-Earnings Drift Lab

Model volatility reaction cones, Post-Earnings Announcement Drift (PEAD), tranche profit locks, and ATR-calibrated trailing stops after massive single-day moves.

Surge Presets:

Surge Asset & Baseline META

Ticker Symbol

Position (Shares)

Pre-Gap Base ($)

Surge Move (%) +10.4%

Annual Implied Vol (IV)

Drift Bias (PEAD)

3-Tranche Profit & Exit Plan Execution

Tranche 1

Lock 30% at +3.0% post-surge

Tranche 2

Lock 40% at +7.5% post-surge

Tranche 3

Runner 30% via ATR Stop (2.2x)

Initial Stop Mechanism

Opening Price $585.12 +$55.12 (+10.4%)

Initial Position Value $58,512 Unrealized: +$5,512

Initial Stop Price $557.56 Max Retrace: -$2,756

Expected 30D Median $618.40 Proj. P&L: +$8,840

META 30-Day Post-Earnings Drift Cone & Exit Targets

Drift Median

±1σ Envelope

Tranches

Trailing Stop

Inspect Day: Day 14 $602.15

Tranche Exit Schedule Units

Tranche 1 (Quick Lock) 30 shs @ $602.67 (+3.0%)
Tranche 2 (Extension Target) 40 shs @ $629.00 (+7.5%)
Tranche 3 (ATR Runner) 30 shs (Trail: 2.2x ATR)
Blended Realized Target $621.80 (+17.3% total)

Volatility & Risk Metrics Parameters

Daily Implied Volatility (IV / √252) 2.39% / day
Estimated 1-Day ATR $13.98
Post-Surge Stop Distance -4.71% ($27.56)
Reward / Risk Ratio 2.68 : 1

Adjust any parameter to immediately remodel drift trajectory and tranche schedule.

Post-Earnings Announcement Drift (PEAD)

Academic literature confirms that large quarterly earnings surprises (like Meta's +10.4% surge) historically experience price drift in the direction of the surprise over 30 to 60 trading days due to delayed analyst revisions and institutional accumulation.

Systematic Tranche Exits

Exiting an explosive gap in stages removes emotion: scaling 30% into early strength locks green trade status, 40% captures normal extension, and a 30% runner trailing behind ATR protects against premature exit on multi-month winners.

Gap-Fill Risk Thresholds

Over 70% of failed breakouts retest the 50% gap level within 5 sessions. Setting stop-loss below the half-gap or gap low provides structural support context rather than an arbitrary dollar loss.