BLLN Max Pain $105 (Oct 16 Exp) · Dark Pool 43.8% — Free
Undercurrent · Money-flow snapshot
BLLN Max Pain, Dark Pool & Options Flow
BLLN max pain for the Oct 16, 2026 expiry is $105, from the Thu Oct 8 options chain. The last price, $98.09, is 6.6% below it. Call wall $105 · put floor $85.
What the institutional money is doing on BLLN right now — dark pool, options positioning, and where the news and the money disagree. Free.
The money right now
Dark pool share
43.8% (market avg 52%)
Dark pool volume vs its norm
0.5×
Short share of that
62.8% (norm 60%)
Price
$98.09
Max pain
$105
Oct 16 exp
Call wall
$105
Oct 16 exp
Put floor
$85
Oct 16 exp
Put/Call ratio
0.73
Squeeze pressure
15
Dark pool share: Off-exchange volume was quiet at 0.5× its norm
Off-exchange prints never touch the public book, so they move size without moving the quote. That is the point of using them. Large players were quiet in this name that day. The share (43.8%) may look normal, but the absolute size behind it was thin.
Source: FINRA · Fri 10/9 close
What it means: The money signals for BLLN lean mildly toward calls, with more calls than puts in both standing positions and recent trading, and the stock trading near its call wall at 105. Off-exchange volume is below its usual level, and short-sale share is somewhat above its norm, so the signals are mixed and weak.
News vs the money
BillionToOne's tissue-free Northstar Response test matches tumor-informed testing in a new peer-reviewed study
The study is a positive clinical story, but the money signals are only a mild call lean with no new large positions recorded, so there is no clear sign that big investors reacted to it.
GlobeNewsWire · 10/07
Billiontoone shares fall 4.6% after an insider sells stock
The insider sale is a negative headline, while the money signals show more calls than puts, so the two point in somewhat different directions.
Defense World · 10/02
Medicare's proposed lab fee changes affect BillionToOne and CareDx differently
This is a mixed policy story, and the money signals are only weakly bullish, so there is no strong sign that investors are pricing in a clear winner or loser.
Benzinga · 09/23
A BillionToOne senior executive sells 1,416 shares worth about $138,000
The sale is a small negative signal, while the money signals show a mild call lean, so the story and the positioning are not clearly aligned.
The Motley Fool · 09/21
⚡ DIVERGENCEBillionToOne's CEO sells his entire directly held stake for about $3 million
The CEO's full exit is a negative headline, while the money signals show more calls than puts, so this story and the positioning point in different directions.
A divergence is when the news narrative and the institutional money flow point in opposite directions — a bearish headline while large call premium is bought, or heavy dark-pool selling under a bullish story. It signals the crowd and the desks may disagree.
How to read these numbers
Dark-pool volume — The share of trading executed off-exchange, at wholesalers and dark pools. About half of all US share volume prints there on an ordinary day, so the level by itself says almost nothing. What carries information is the distance from this name’s own recent norm, and whether the off-exchange size ran above its usual.
Off-exchange short share — How much of that off-exchange volume was sold short. The median across all listed names is about 49%, because wholesalers filling retail buy orders sell short and cover later. A reading near half is plumbing, not a bearish vote — compare it to the same name’s own 20-day norm.
Max pain — The price where the most options expire worthless — positioning often gravitates toward it near expiry.
Call wall / Put floor — Strikes with the heaviest call/put open interest — they often act as short-term resistance and support.