Maravai Lifesciences Holdings Inc (MRVI) short interest & short volume · 13.3M shares short
Maravai Lifesciences Holdings Inc official short interest (FINRA, twice monthly) and daily short volume (FINRA Reg SHO), with history, % of float and days to cover.
What changed
MRVI short interest fell 3.5% to 13.3M shares in the Oct 15, 2026 report (4.5 days to cover). Daily short volume averaged 41.8% of volume over the last 20 sessions, down from 43.6% the 20 sessions before, the 62nd percentile of its own 20-day averages since Sep 23, 2025.
Short interest
Official, twice monthly · settled Oct 15, 2026
- Shares short
- 13.3M
- prior 13.8M
- % of float
- —
- no float on file
- Days to cover
- 4.5
- avg vol 3.0M
- Change vs prior report
- -3.5%
Days to cover is short interest divided by FINRA's average daily volume for the period: how many average days of trading it would take shorts to buy back.
Source: FINRA equity short interest (twice monthly) · Settlement Oct 15, 2026
Daily short volume
Share of each day's volume sold short · FINRA Reg SHO
- Latest (Nov 2)
- 22.8%
- 186K of 819K
- 20-day average
- 41.8%
- prior 43.6%
- Percentile vs own history
- 62nd
- 233 periods since 2025
Loading prices…
Source: FINRA Reg SHO daily short sale volume · Latest Nov 2, 2026
Short squeeze score (model)
Price since settlement: +5.4%
Model, not a forecast: 40 pts short interest % of float (full at 30%), 25 pts days to cover (full at 10), 15 pts rise in short interest since the prior report (full at +50%), 20 pts price gain since the settlement date (full at +25%). Missing inputs score 0.
MRVI's squeeze score and its inputs with Lician Pro.Start 3-day trial — $149/yr
Market-wide: most shorted stocks, biggest changes and unusual short volume · MRVI overview
| Date | Short | Total | Short % of volume |
|---|---|---|---|
| 2026-11-02 | 186,319 | 818,669 | 22.8% |
| 2026-10-30 | 285,710 | 613,560 | 46.6% |
| 2026-10-29 | 229,691 | 496,886 | 46.2% |
| 2026-10-28 | 257,321 | 1,286,765 | 20.0% |
| 2026-10-27 | 502,471 | 1,199,388 | 41.9% |
| 2026-10-26 | 198,106 | 308,753 | 64.2% |
| 2026-10-23 | 207,447 | 378,245 | 54.8% |
| 2026-10-22 | 610,988 | 1,468,827 | 41.6% |
| 2026-10-21 | 271,950 | 455,633 | 59.7% |
| 2026-10-20 | 375,335 | 837,521 | 44.8% |
Healthcare peers with similar quant ratings
MRVI is rated 2.65 of 5 among 532 rated Healthcare stocks (Lician quant rating, Nov 4, 2026). How the rating works
- BBNX short interest2.68 · Hold · stock
- DNTH short interest2.67 · Hold · stock
- SRPT short interest2.67 · Hold · stock
- SI short interest2.66 · Hold · stock
- ARVN short interest2.64 · Hold · stock
- CERT short interest2.64 · Hold · stock
- NVCR short interest2.63 · Hold · stock
- BHVN short interest2.62 · Hold · stock
MRVI short interest FAQ
What is MRVI's short interest?
Maravai Lifesciences Holdings Inc (MRVI) had 13.3M shares sold short and not yet covered in FINRA's Oct 15, 2026 settlement report.
How many days to cover does MRVI have?
4.5 days: 13.3M shares short divided by an average daily volume of 3.0M for the Oct 15, 2026 period.
Is MRVI short interest rising or falling?
MRVI short interest fell (-3.5%) from 13.8M to 13.3M shares in the Oct 15, 2026 report.
Is MRVI a short squeeze candidate?
Lician's squeeze watch scores MRVI 15 out of 100 (low) from the Oct 15, 2026 report: days to cover 11.1/25, change in short interest vs prior report 0/15, price change since settlement date 4.3/20. It is a transparent model of how crowded the short side is, not a forecast that a squeeze will happen.
What share of MRVI daily volume is sold short?
41.8% on average over the last 20 sessions to Nov 2, 2026 (FINRA Reg SHO daily short volume; the 62nd percentile of its own 20-day averages). Short volume counts market makers' same-day short sales, so it is not short interest.
What was MRVI's latest FINRA short volume?
On Nov 2, 2026, cached FINRA short volume for Maravai Lifesciences Holdings Inc (MRVI) was 186,319 shares, 22.8% of 818,669 total volume.
How many MRVI short-volume sessions are listed on this page?
This page lists 10 cached FINRA short-volume sessions for Maravai Lifesciences Holdings Inc (MRVI), from Oct 20, 2026 through Nov 2, 2026.
How did MRVI short volume percent change from the prior cached session?
Cached FINRA short volume for Maravai Lifesciences Holdings Inc (MRVI) moved from 46.6% on Oct 30, 2026 to 22.8% on Nov 2, 2026, down 23.8 percentage points.
Not investment advice. Figures as filed or reported, not a live feed.