MKSI · Mks Inc
$310.73
+4.44 (+1.45%)
At close · Aug 14
Market Cap
$20.75B
Shares
67.62M
Shares sold short and not yet covered, reported twice monthly. Days to cover is the reported short position divided by average daily volume.
Model estimate
Expected Aug 14 short interest
as of Aug 14
5,785,831
+0.6% vs reported
Short Squeeze Score
57/100
Short interest 8.5% of shares — P86
Days to cover 4.0 — P59
Price vs VWAP -8.3% — P25
Short-volume trend -8.3% — P21
Short interest change +11.5% — P80
Worst FTD 0.01% of shares — P41
Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-07-31). Weighted mean of the available factors (short interest 30%, days to cover 20%, price vs VWAP 15%, short-volume trend 15%, short-interest change 10%, fails-to-deliver 10%) plus catalyst boosts (price spike, volume surge, earnings within days), capped at +20 and clamped to 100.
Short Interest History
| Settlement Date | Current Position | Previous Position | Change | Days to Cover |
|---|---|---|---|---|
|
2026-08-31
Scheduled
FINRA publishes Sep 10
|
— | — | — | — |
|
2026-08-14
Scheduled
FINRA publishes Aug 25
|
— | — | — | — |
| 2026-07-31 | 5,751,932 | 5,158,599 | +593,333 | 4.02 |
| 2026-07-15 | 5,158,599 | 4,963,667 | +194,932 | 3.93 |
| 2026-06-30 | 4,963,667 | 4,587,428 | +376,239 | 2.76 |
| 2026-06-15 | 4,587,428 | 4,424,884 | +162,544 | 4.65 |
| 2026-05-29 | 4,424,884 | 4,329,183 | +95,701 | 3.88 |
| 2026-05-15 | 4,329,183 | 3,562,308 | +766,875 | 2.86 |
| 2026-04-30 | 3,562,308 | 3,531,885 | +30,423 | 3.22 |
| 2026-04-15 | 3,531,885 | 3,742,623 | -210,738 | 3.97 |
| 2026-03-31 | 3,742,623 | 3,435,696 | +306,927 | 3.25 |
| 2026-03-13 | 3,435,696 | 3,842,559 | -406,863 | 2.62 |
| 2026-02-27 | 3,842,559 | 3,201,298 | +641,261 | 2.14 |
| 2026-02-13 | 3,201,298 | 2,948,350 | +252,948 | 1.68 |
| 2026-01-30 | 2,948,350 | 3,163,366 | -215,016 | 1.59 |
| 2026-01-15 | 3,163,366 | 2,952,723 | +210,643 | 3.40 |
| 2025-12-31 | 2,952,723 | 2,813,958 | +138,765 | 4.10 |
| 2025-12-15 | 2,813,958 | 2,903,574 | -89,616 | 3.06 |
| 2025-11-28 | 2,903,574 | 3,638,347 | -734,773 | 3.77 |
| 2025-11-14 | 3,638,347 | 3,473,816 | +164,531 | 3.00 |
| 2025-10-31 | 3,473,816 | 3,693,278 | -219,462 | 3.95 |
| 2025-10-15 | 3,693,278 | 3,615,867 | +77,411 | 3.15 |
| 2025-09-30 | 3,615,867 | 4,712,146 | -1,096,279 | 2.09 |
| 2025-09-15 | 4,712,146 | 4,148,962 | +563,184 | 4.30 |
| 2025-08-29 | 4,148,962 | 3,694,301 | +454,661 | 4.90 |
| 2025-08-15 | 3,694,301 | 3,718,167 | -23,866 | 3.07 |
Showing 1–24 of 24 settlements
Key facts
CIK
1049502
CUSIP
55306N104
13F (30d)
736 filings
711 filers
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Investor relations