Glaukos (GKOS) options flow
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Options flow session · Last trade
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GKOS session snapshot
Bullflow recorded 6 GKOS options trades on Wednesday, October 28, 2026, totaling $1,157,290 in premium. Calls made up $0.00 (0.0%) across 0 trades and puts $1.16M (100.0%) across 6 trades.
6 trades were sweeps and 0 were blocks. 2 filled at or above the ask, 4 at or below the bid and 0 at the mid. The largest was a $370,480 sweep of 677 Nov 20, 2026 $150 Put trade at 13:54:19 ET, filled at the ask.
GKOS closed at $181.43, up 0.14% from the prior close.
- Company
- Glaukos Corporation
- Exchange
- NYSE
- Sector
- Unavailable
- Close
- $181.43
GKOS options flow statistics
- Total premium
- $1.16M
- Recorded trades
- 6
- Call premium
- $0.00
- Put premium
- $1.16M
- Put/call premium ratio
- Unavailable (no call premium)
- Avg premium per trade
- $192.88K
- Calls / puts (trades)
- 0 / 6
- Sweeps / blocks
- 6 / 0
- At or above ask
- 2
- At or below bid
- 4
- Largest trade
- $370.48K
- Last trade
Where the premium went
in calls
$1.16M · 6 trades
Premium
Trade type
Fill side
GKOS largest options trades
| Time | Contract | C/P | Premium | Size | Fill | Type |
|---|---|---|---|---|---|---|
| GKOS Nov 20, 2026 $150 | Put | $370,480 | 677 | Ask | Sweep | |
| GKOS Nov 20, 2026 $150 | Put | $301,820 | 606 | Below Bid | Sweep | |
| GKOS Nov 20, 2026 $150 | Put | $183,310 | 381 | Below Bid | Sweep | |
| GKOS Nov 20, 2026 $170 | Put | $141,440 | 136 | Bid | Sweep | |
| GKOS Nov 20, 2026 $150 | Put | $95,850 | 213 | Bid | Sweep | |
| GKOS Nov 20, 2026 $150 | Put | $64,390 | 137 | Ask | Sweep |
5 of the 6 largest trades, $1.02M combined
The 6 largest trades total $1.16M of $1.16M
GKOS gamma exposure
Gamma exposure is separate from this closing options flow summary. Additional data appears in the interactive view when available.
GKOS options flow questions
What was the largest GKOS options trade on October 28, 2026?
A $370,480 sweep of 677 GKOS Nov 20, 2026 $150 Put trade at 13:54:19 ET, filled at the ask. It was the largest of 6 trades Bullflow recorded for GKOS that session.
How much GKOS options premium traded on October 28, 2026?
$1,157,290 across 6 recorded sweeps and blocks: $0 in calls (0 trades) and $1,157,290 in puts (6 trades).
Was GKOS options flow bullish or bearish on October 28, 2026?
Calls were 0.0% of premium. 4 of 6 trades filled at or below the bid and 2 at or above the ask. Premium and fill side do not show whether a trade opened or closed a position or was a hedge, so they do not establish direction on their own.
How often is GKOS options flow data updated?
The page shows a completed session (October 28, 2026, last trade 13:54:19 ET) and updates after the next trading day becomes historical. Intraday GKOS flow is in the Bullflow dashboard and API.
How to read this data
This summary covers recorded single-leg sweeps and blocks with positive premium, excluding cancelled trades. It describes the covered flow, not all options-market volume. Total premium is gross traded premium; it is not net buying pressure. The interactive dashboard can use different filters and may show different totals.
Calls, puts, and execution near the bid or ask provide context but do not establish whether a position was opened or closed, whether it was part of a hedge, or where the stock will move next. The session updates after the next trading day becomes historical.
Stock prices show regular-session candles delayed at least 15 minutes. The latest view refreshes during market hours; the flow-session view places recorded trades on their original date, using interpolated stock prices between candle samples. Gamma exposure shows its separately dated public closing snapshot.