Grade A · Historical Performance·Data as of Apr 20, 2026

MRK Grade A Options Flow

23 Grade A institutional flow signals on MRK. 12 closed with full P&L. Win rate across all closed Grade A MRK signals: 58.3%.

Total Grade A
23
Win rate
58.3%
Avg winner
+16.6%
Avg loser
-29.2%
Outcome breakdown

How MRK Grade A signals have closed

BIG_WIN
0
WIN
1
SMALL_WIN
6
LOSS
5
BIG_LOSS
0
EXPIRED
0
SCRATCH
9
DTE Performance

Where MRK Grade A signals perform

6-30 DTE
20%
1 / 5 closed
30+ DTE
85.7%
6 / 7 closed
Extremes

Best and worst Grade A MRK closures

Best winner
+45.4%
Single Grade A MRK trade return
Worst loser
-36.1%
DTE-based exit rule capped the loss
Recent Grade A MRK activity

Last 5 Grade A prints

Size-bucketed for public view. Exact strikes, expirations, and entry premiums are visible only in the live scanner.

OPEN
$500K+ puts · sweep
Apr 20, 2026
+5.2%
OPEN
$1M+ calls · block 1m
Apr 17, 2026
-7.7%
LOSS
$500K+ calls · block
Mar 25, 2026
-23.1%
SMALL_WIN
$1M+ calls · block
Mar 13, 2026
+18.1%
LOSS
$1M+ calls · block
Mar 13, 2026
-36.1%
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Methodology. Grade A = all 9 filters passed: $500K+ premium, 20x+ Vol/OI, aggressive fill, non-market-maker classification, opening position, single-leg, not deep ITM, not closing LEAP, regime-aware threshold. Exit rules are DTE-based: 0DTE +20%/-20%, 1-5 DTE +25%/-25%, 6-30 DTE +40%/-30%, 30+ DTE +30%/-30%. See the full track record methodology →.