KLAC Unusual Options Activity

As of Oct 9, 2026, our scanner has flagged 11 unusual KLAC options trades in its recent history: 7 bullish and 4 bearish, totaling $15.2M in premium. Flow has leaned leaned bullish (call buying), with $8.7M in bullish call premium vs. $6.5M in bearish put premium. The most recent KLAC trade was flagged at 13:30 ET on Oct 9, 2026.

Recent KLAC options flow

1. 13:30 ET

   Oct 9, 2026
   2539 $KLAC Oct 16th 2026 202.5 CALLS BOUGHT@ 3.7 vs Open Interest of 440 for a total of $927421. 5.8x volume/OI ratio.
   BULLISH
2. 12:15 ET

   Oct 1, 2026
   2475 $KLAC Oct 9th 2026 200 CALLS BOUGHT@ 4.9 vs Open Interest of 145 for a total of $1209434. 17.1x volume/OI ratio.
   BULLISH
3. 12:00 ET

   Sep 24, 2026
   2402 $KLAC Oct 2nd 2026 190 CALLS BOUGHT@ 3.7 vs Open Interest of 294 for a total of $888043. 8.2x volume/OI ratio.
   BULLISH
4. 11:00 ET

   Aug 28, 2026
   2387 $KLAC Sep 4th 2026 185 CALLS BOUGHT@ 3.3 vs Open Interest of 128 for a total of $779546. 18.6x volume/OI ratio.
   BULLISH
5. 09:30 ET

   Aug 5, 2026
   801 $KLAC Aug 21st 2026 165 CALLS BOUGHT@ 22.1 vs Open Interest of 400 for a total of $1772196. 2x volume/OI ratio.
   BULLISH
6. 09:30 ET

   Aug 4, 2026
   801 $KLAC Aug 21st 2026 165 CALLS BOUGHT@ 22.1 vs Open Interest of 400 for a total of $1772196. 2x volume/OI ratio.
   BULLISH
7. 10:30 ET

   Aug 3, 2026
   2117 $KLAC Aug 21st 2026 196 CALLS BOUGHT@ 6.5 vs Open Interest of 123 for a total of $1367053. 17.2x volume/OI ratio.
   BULLISH
8. 10:30 ET

   Jul 30, 2026
   1963 $KLAC Aug 21st 2026 172 PUTS BOUGHT@ 9.8 vs Open Interest of 604 for a total of $1931023. 3.3x volume/OI ratio.
   BEARISH
9. 10:46 ET

   May 27, 2026
   1512 $KLAC Jun 18th 2026 1620 PUTS BOUGHT@ 11 vs Open Interest of 252 for a total of $1667177. 6x volume/OI ratio.
   BEARISH
10. 10:33 ET

    May 27, 2026
    1512 $KLAC Jun 18th 2026 1620 PUTS BOUGHT@ 11 vs Open Interest of 252 for a total of $1667177. 6x volume/OI ratio.
    BEARISH
11. 09:45 ET

    Apr 20, 2026
    2003 $KLAC May 15th 2026 1350 PUTS BOUGHT@ 6.3 vs Open Interest of 232 for a total of $1253437. 8.6x volume/OI ratio.
    BEARISH

How to read KLAC unusual options activity

Each row is a single KLAC options trade where same-day volume was large relative to open interest and the premium was large. Bullish means calls were bought at or above the ask; bearish means puts were bought at or above the ask. Volume above open interest suggests, but does not prove, that new positions were opened. Check whether KLAC open interest rose the next day to confirm. Learn more in our guide to unusual options activity and volume vs. open interest.

KLAC options flow FAQ

Is there unusual options activity in KLAC today?

Our most recent flagged KLAC trade was at 13:30 ET on Oct 9, 2026. This page lists every recent KLAC trade our scanner flagged, newest first, and refreshes every few minutes during market hours.

Is KLAC options flow bullish or bearish right now?

Of 11 recent flagged KLAC trades, 7 were bullish (calls bought at or above the ask) and 4 were bearish (puts bought at or above the ask). Large put buying is often hedging, so treat this as positioning data, not a prediction.