Tandem Diabetes Care (TNDM) options flow
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Options flow session · Last trade
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TNDM session snapshot
Bullflow recorded 2 TNDM options trades on Monday, October 26, 2026, totaling $35,325 in premium. Calls made up $35.33K (100.0%) across 2 trades and puts $0.00 (0.0%) across 0 trades, a put/call premium ratio of 0.00.
2 trades were sweeps and 0 were blocks. 1 filled at or above the ask, 1 at or below the bid and 0 at the mid. The largest was a $20,925 sweep of 93 May 21, 2027 $24 Call trade at 12:56:19 ET, filled at the ask.
TNDM closed at $18.90, up 8.43% from the prior close.
- Company
- Tandem Diabetes Care, Inc.
- Exchange
- NASDAQ
- Sector
- Unavailable
- Close
- $18.90
TNDM options flow statistics
- Total premium
- $35.33K
- Recorded trades
- 2
- Call premium
- $35.33K
- Put premium
- $0.00
- Put/call premium ratio
- 0.00
- Avg premium per trade
- $17.66K
- Calls / puts (trades)
- 2 / 0
- Sweeps / blocks
- 2 / 0
- At or above ask
- 1
- At or below bid
- 1
- Largest trade
- $20.93K
- Last trade
Where the premium went
in calls
$35.33K · 2 trades
Premium
Trade type
Fill side
TNDM largest options trades
| Time | Contract | C/P | Premium | Size | Fill | Type |
|---|---|---|---|---|---|---|
| TNDM May 21, 2027 $24 | Call | $20,925 | 93 | Ask | Sweep | |
| TNDM Nov 20, 2026 $19 | Call | $14,400 | 120 | Bid | Sweep |
Each of the 2 largest trades had a different contract.
The 2 largest trades total $35.33K of $35.33K
TNDM gamma exposure
Gamma exposure is separate from this closing options flow summary. Additional data appears in the interactive view when available.
TNDM options flow questions
What was the largest TNDM options trade on October 26, 2026?
A $20,925 sweep of 93 TNDM May 21, 2027 $24 Call trade at 12:56:19 ET, filled at the ask. It was the largest of 2 trades Bullflow recorded for TNDM that session.
How much TNDM options premium traded on October 26, 2026?
$35,325 across 2 recorded sweeps and blocks: $35,325 in calls (2 trades) and $0 in puts (0 trades).
Was TNDM options flow bullish or bearish on October 26, 2026?
Calls were 100.0% of premium (put/call premium ratio 0.00). 1 of 2 trades filled at or below the bid and 1 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 TNDM options flow data updated?
The page shows a completed session (October 26, 2026, last trade 12:56:19 ET) and updates after the next trading day becomes historical. Intraday TNDM 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.