WhaleQuant.io

PFE Short Squeeze Risk Tracker: Data and Analysis

Last Updated: 2025-11-28

Access the latest PFE short interest history, Days to Cover (DTC) trend, and the proprietary Short Squeeze Score for risk assessment.

Short Squeeze Risk Assessment

PFE Short Squeeze Score

0.14

Very low short squeeze risk. Short interest is negligible, and market pressure is not high.

The Squeeze Score quantifies the current short squeeze risk by analyzing short interest, Days to Cover, and market liquidity. Use this score to quickly identify the most shorted stocks with the highest squeeze potential.

  • 0.0–0.2: Very low short squeeze risk.
  • 0.2–0.4: Low short squeeze potential.
  • 0.4–0.6: Moderate short squeeze risk.
  • 0.6–0.8: High short squeeze risk.
  • 0.8–1.0: Extreme short squeeze risk.

Short Interest Ratio (% of Float)

2.45%

The Short Interest Ratio (or % of Float) is the most critical metric for identifying the most shorted stocks. It reflects the percentage of available trading shares currently sold short.

Interpretation:

  • 0%–5%: Very low short interest, minimal squeeze risk.
  • 5%–10%: Moderate short interest, watch for trends.
  • 10%–20%: High short interest, potential for squeeze.
  • >20%: Extremely high, short squeeze risk elevated.

Key Short Selling Metrics

Total Short Interest Shares
139,072,627
Shares sold short as of 2025-11-28

High short interest, indicating significant bearish sentiment.

Days to Cover (DTC)
2.5

Short interest ÷ average daily volume.

It would take 2 to 5 days to cover short positions, posing moderate risk.

Bi-weekly Change in Short Interest
6.44%
8412264
Vs previous report.

Moderate increase in short interest, potential buildup of pressure.

Historical Data Coverage
166

Bi-weekly observations in the stored history.

High coverage with extensive historical data, trends are more reliable for analysis.

Short Interest Historical Charts

Explore the short interest trend, bi-weekly changes, and Days to Cover (DTC). Use the range selector to view different historical windows.

Short Interest (Total Shares)


Bi-Weekly Change (%)


Days to Cover (DTC)

Full Short Interest History (FINRA Bi-Weekly)

Complete FINRA bi-weekly short interest history for PFE.
This table includes total short interest, prior period values, percentage change,average daily volume, and Days to Cover (DTC), a key indicator of potential short squeeze risk.
Date Short Interest Prior Change % Change # Avg Volume DTC
2025-11-28 139,072,627 130,660,363 6.44% 8,412,264 55,545,625 2.50
2025-11-14 130,660,363 126,587,750 3.22% 4,072,613 126,043,706 1.04
2025-10-31 126,587,750 116,815,571 8.37% 9,772,179 59,344,065 2.13
2025-10-15 116,815,571 113,954,344 2.51% 2,861,227 63,461,564 1.84
2025-09-30 113,954,344 112,932,270 0.91% 1,022,074 60,455,578 1.88
2025-09-15 112,932,270 103,465,144 9.15% 9,467,126 43,588,389 2.59
2025-08-29 103,465,144 113,845,935 -9.12% -10,380,791 36,433,348 2.84
2025-08-15 113,845,935 107,778,211 5.63% 6,067,724 49,720,243 2.29
2025-07-31 107,778,211 99,269,883 8.57% 8,508,328 40,089,991 2.69
2025-07-15 99,269,883 111,909,372 -11.29% -12,639,489 40,242,015 2.47
2025-06-30 111,909,372 106,732,210 4.85% 5,177,162 38,374,682 2.92
2025-06-13 106,732,210 104,993,610 1.66% 1,738,600 36,683,156 2.91
2025-05-30 104,993,610 107,376,473 -2.22% -2,382,863 39,906,213 2.63
2025-05-15 107,376,473 115,162,479 -6.76% -7,786,006 51,202,695 2.10
2025-04-30 115,162,479 107,433,545 7.19% 7,728,934 48,979,754 2.35
2025-04-15 107,433,545 97,494,423 10.19% 9,939,122 66,012,216 1.63
2025-03-31 97,494,423 99,172,324 -1.69% -1,677,901 69,619,751 1.40
2025-03-14 99,172,324 94,955,194 4.44% 4,217,130 44,596,409 2.22
2025-02-28 94,955,194 89,117,210 6.55% 5,837,984 40,758,814 2.33
2025-02-14 89,117,210 73,568,473 21.14% 15,548,737 42,222,092 2.11
2025-01-31 73,568,473 91,783,778 -19.85% -18,215,305 37,688,065 1.95
2025-01-15 91,783,778 75,708,169 21.23% 16,075,609 33,747,882 2.72
2024-12-31 75,709,116 85,365,045 -11.31% -9,655,929 46,147,044 1.64
2024-12-13 85,365,045 90,384,090 -5.55% -5,019,045 39,901,419 2.14
2024-11-29 90,384,090 94,541,302 -4.40% -4,157,212 43,414,711 2.08
2024-11-15 94,541,302 61,869,322 52.81% 32,671,980 57,662,546 1.64
2024-10-31 61,869,322 70,944,172 -12.79% -9,074,850 36,154,684 1.71
2024-10-15 70,944,172 67,620,137 4.92% 3,324,035 31,955,948 2.22
2024-09-30 67,620,137 74,837,204 -9.64% -7,217,067 29,246,643 2.31
2024-09-13 74,837,204 65,379,732 14.47% 9,457,472 30,950,626 2.42
2024-08-30 65,379,732 61,731,098 5.91% 3,648,634 24,164,134 2.71
2024-08-15 61,731,098 65,334,514 -5.52% -3,603,416 31,623,685 1.95
2024-07-31 65,334,514 55,701,935 17.29% 9,632,579 41,808,499 1.56
2024-07-15 55,701,935 59,890,401 -6.99% -4,188,466 27,934,615 1.99
2024-06-28 59,890,401 62,071,446 -3.51% -2,181,045 33,146,306 1.81
2024-06-14 62,071,446 75,974,487 -18.30% -13,903,041 33,721,196 1.84
2024-05-31 75,974,487 70,223,845 8.19% 5,750,642 35,142,642 2.16
2024-05-15 70,223,845 62,509,317 12.34% 7,714,528 51,593,731 1.36
2024-04-30 62,509,317 68,062,599 -8.16% -5,553,282 36,843,602 1.70
2024-04-15 68,062,599 64,997,268 4.72% 3,065,331 36,668,663 1.86
2024-03-28 64,997,268 71,654,031 -9.29% -6,656,763 33,581,116 1.94
2024-03-15 71,654,031 66,119,938 8.37% 5,534,093 57,895,726 1.24
2024-02-29 66,119,938 60,680,875 8.96% 5,439,063 36,957,247 1.79
2024-02-15 60,680,875 60,186,221 0.82% 494,654 39,074,224 1.55
2024-01-31 60,186,221 57,575,039 4.54% 2,611,182 50,407,240 1.19
2024-01-12 57,575,039 57,031,021 0.95% 544,018 40,894,080 1.41
2023-12-29 57,031,021 61,885,103 -7.84% -4,854,082 44,642,561 1.28
2023-12-15 61,885,103 56,935,879 8.69% 4,949,224 70,615,631 1.00
2023-11-30 56,935,879 57,497,598 -0.98% -561,719 26,929,060 2.11
2023-11-15 57,497,598 47,179,598 21.87% 10,318,000 30,723,904 1.87
2023-10-31 47,179,598 54,565,516 -13.54% -7,385,918 35,156,195 1.34
2023-10-13 54,565,516 51,075,743 6.83% 3,489,773 25,982,905 2.10
2023-09-29 51,075,743 49,946,188 2.26% 1,129,555 27,846,463 1.83
2023-09-15 49,946,188 50,456,494 -1.01% -510,306 27,624,841 1.81
2023-08-31 50,456,494 52,394,065 -3.70% -1,937,571 21,717,638 2.32
2023-08-15 52,394,065 45,860,472 14.25% 6,533,593 25,139,743 2.08
2023-07-31 45,860,472 52,675,910 -12.94% -6,815,438 23,664,304 1.94
2023-07-14 52,675,910 59,505,667 -11.48% -6,829,757 20,153,444 2.61
2023-06-30 59,505,667 55,119,826 7.96% 4,385,841 32,250,715 1.85
2023-06-15 55,119,826 55,777,927 -1.18% -658,101 21,832,375 2.52
2023-05-31 55,777,927 45,923,613 21.46% 9,854,314 39,178,360 1.42
2023-05-15 45,923,601 43,867,104 4.69% 2,056,497 22,461,811 2.04
2023-04-28 43,867,104 41,369,976 6.04% 2,497,128 20,070,000 2.19
2023-04-14 41,369,976 49,071,593 -15.69% -7,701,617 20,771,778 1.99
2023-03-31 49,071,593 44,140,799 11.17% 4,930,794 21,103,950 2.33
2023-03-15 44,140,799 38,492,474 14.67% 5,648,325 22,802,773 1.94
2023-02-28 38,492,474 38,020,888 1.24% 471,586 20,780,485 1.85
2023-02-15 38,020,888 39,168,761 -2.93% -1,147,873 21,613,598 1.76
2023-01-31 39,168,761 37,172,998 5.37% 1,995,763 28,227,933 1.39
2023-01-13 37,172,998 42,525,483 -12.59% -5,352,485 23,584,637 1.58
2022-12-30 42,525,483 58,020,158 -26.71% -15,494,675 17,507,604 2.43
2022-12-15 58,020,158 62,827,686 -7.65% -4,807,528 22,553,269 2.57
2022-11-30 62,827,686 70,044,794 -10.30% -7,217,108 17,173,005 3.66
2022-11-15 70,044,794 54,691,142 28.07% 15,353,652 22,499,531 3.11
2022-10-31 54,691,142 62,511,349 -12.51% -7,820,207 23,652,000 2.31
2022-10-14 62,511,349 60,372,206 3.54% 2,139,143 20,666,131 3.02
2022-09-30 60,372,206 63,887,362 -5.50% -3,515,156 19,130,659 3.16
2022-09-15 63,887,362 62,199,380 2.71% 1,687,982 16,624,047 3.84
2022-08-31 62,199,380 67,935,703 -8.44% -5,736,323 16,106,415 3.86
2022-08-15 67,935,703 59,897,992 13.42% 8,037,711 19,875,002 3.42
2022-07-29 59,897,992 67,352,858 -11.07% -7,454,866 18,080,995 3.31
2022-07-15 67,352,858 68,925,072 -2.28% -1,572,214 15,942,231 4.22
2022-06-30 68,925,072 76,975,864 -10.46% -8,050,792 22,991,850 3.00
2022-06-15 76,975,864 77,201,464 -0.29% -225,600 19,938,353 3.86
2022-05-31 77,201,464 57,670,212 33.87% 19,531,252 27,136,109 2.84
2022-05-13 57,670,212 67,991,161 -15.18% -10,320,949 28,472,330 2.03
2022-04-29 67,991,161 62,649,844 8.53% 5,341,317 25,166,807 2.70
2022-04-14 62,649,844 61,562,260 1.77% 1,087,584 23,125,979 2.71
2022-03-31 61,562,260 61,175,144 0.63% 387,116 30,536,360 2.02
2022-03-15 61,175,144 65,636,348 -6.80% -4,461,204 31,971,031 1.91
2022-02-28 65,636,348 63,255,809 3.76% 2,380,539 30,898,745 2.12
2022-02-15 63,255,809 69,221,304 -8.62% -5,965,495 35,238,719 1.80
2022-01-31 69,221,304 64,075,070 8.03% 5,146,234 38,597,261 1.79
2022-01-14 64,075,070 58,635,375 9.28% 5,439,695 39,232,672 1.63
2021-12-31 58,635,375 66,013,244 -11.18% -7,377,869 49,496,833 1.18
2021-12-15 66,013,244 63,564,249 3.85% 2,448,995 47,248,303 1.40
2021-11-30 63,564,249 63,538,349 0.04% 25,900 42,364,348 1.50
2021-11-15 63,538,349 58,878,330 7.91% 4,660,019 53,328,031 1.19
2021-10-29 58,878,330 54,477,410 8.08% 4,400,920 22,423,005 2.63
2021-10-15 54,477,410 52,180,504 4.40% 2,296,906 22,484,152 2.42
2021-09-30 52,180,504 54,093,535 -3.54% -1,913,031 26,406,188 1.98
2021-09-15 54,093,535 58,674,931 -7.81% -4,581,396 25,431,861 2.13
2021-08-31 58,674,931 61,418,532 -4.47% -2,743,601 50,250,117 1.17
2021-08-13 61,418,532 54,504,661 12.68% 6,913,871 40,555,117 1.51
2021-07-30 54,504,661 61,242,990 -11.00% -6,738,329 30,437,322 1.79
2021-07-15 61,242,990 63,146,117 -3.01% -1,903,127 19,070,310 3.21
2021-06-30 63,146,117 59,773,904 5.64% 3,372,213 20,474,923 3.08
2021-06-15 59,773,904 58,980,886 1.34% 793,018 23,677,630 2.52
2021-05-28 58,996,506 57,321,688 2.92% 1,674,818 20,322,228 2.90
2021-05-14 57,321,688 58,020,780 -1.20% -699,092 35,557,464 1.61
2021-04-30 58,020,780 60,891,029 -4.71% -2,870,249 25,608,171 2.27
2021-04-15 60,891,029 64,458,922 -5.54% -3,567,893 22,364,488 2.72
2021-03-31 65,927,888 68,324,457 -3.51% -2,396,569 26,920,857 2.45
2021-03-15 68,324,457 67,646,027 1.00% 678,430 27,641,754 2.47
2021-02-26 67,646,027 63,124,600 7.16% 4,521,427 27,507,564 2.46
2021-02-12 63,124,600 63,106,660 0.03% 17,940 35,074,607 1.80
2021-01-29 63,106,660 65,477,974 -3.62% -2,371,314 30,940,182 2.04
2021-01-15 65,477,974 65,273,968 0.31% 204,006 31,616,695 2.07
2020-12-31 65,273,968 63,138,417 3.38% 2,135,551 33,619,482 1.94
2020-12-15 63,138,417 63,677,558 -0.85% -539,141 63,241,272 1.00
2020-11-30 63,677,558 66,532,665 -4.29% -2,855,107 42,437,445 1.50
2020-11-13 66,532,665 45,925,049 44.87% 20,607,616 52,920,578 1.26
2020-10-30 45,925,049 40,439,423 13.57% 5,485,626 25,714,476 1.79
2020-10-15 40,439,423 45,163,995 -10.46% -4,724,572 18,577,037 2.18
2020-09-30 45,163,995 42,754,497 5.64% 2,409,498 17,946,699 2.52
2020-09-15 42,754,497 45,212,024 -5.44% -2,457,527 24,441,369 1.75
2020-08-31 45,212,024 50,222,963 -9.98% -5,010,939 19,127,071 2.36
2020-08-14 50,222,963 53,492,478 -6.11% -3,269,515 19,516,737 2.57
2020-07-31 53,492,478 47,474,673 12.68% 6,017,805 34,772,954 1.54
2020-07-15 47,474,673 51,486,098 -7.79% -4,011,425 31,269,032 1.52
2020-06-30 51,486,098 53,745,863 -4.20% -2,259,765 29,731,145 1.73
2020-06-15 53,745,863 52,035,508 3.29% 1,710,355 34,897,853 1.54
2020-05-29 52,035,508 52,589,747 -1.05% -554,239 17,366,873 3.00
2020-05-15 52,589,747 49,854,857 5.49% 2,734,890 20,364,610 2.58
2020-04-30 48,963,207 44,305,945 10.51% 4,657,262 20,258,606 2.42
2020-04-15 44,305,920 46,447,256 -4.61% -2,141,336 23,512,117 1.88
2020-03-31 46,447,256 59,077,408 -21.38% -12,630,152 40,705,711 1.14
2020-03-13 59,077,408 53,667,518 10.08% 5,409,890 39,355,128 1.50
2020-02-28 53,667,518 58,668,786 -8.52% -5,001,268 37,994,651 1.41
2020-02-14 58,668,786 61,026,207 -3.86% -2,357,421 19,496,387 3.01
2020-01-31 61,026,207 56,967,572 7.12% 4,058,635 26,778,436 2.28
2020-01-15 56,967,572 57,137,431 -0.30% -169,859 15,521,625 3.67
2019-12-31 57,137,431 58,840,925 -2.90% -1,703,494 18,628,975 3.07
2019-12-13 58,840,925 57,978,493 1.49% 862,432 13,374,725 4.40
2019-11-29 57,978,493 51,656,257 12.24% 6,322,236 21,739,141 2.67
2019-11-15 51,656,257 49,602,981 4.14% 2,053,276 20,719,222 2.49
2019-10-31 49,602,981 49,037,250 1.15% 565,731 18,025,945 2.75
2019-10-15 49,037,250 47,825,798 2.53% 1,211,452 15,530,818 3.16
2019-09-30 47,825,798 58,540,752 -18.30% -10,714,954 20,686,160 2.31
2019-09-13 58,540,752 58,889,034 -0.59% -348,282 21,605,094 2.71
2019-08-30 58,889,034 55,228,288 6.63% 3,660,746 20,923,146 2.81
2019-08-15 55,228,288 67,951,144 -18.72% -12,722,856 34,148,805 1.62
2019-07-31 67,951,144 57,720,475 17.72% 10,230,669 29,935,066 2.27
2019-07-15 57,720,475 56,972,518 1.31% 747,957 20,141,959 2.87
2019-06-28 56,972,518 63,794,445 -10.69% -6,821,927 26,196,193 2.17
2019-06-14 63,794,445 70,297,246 -9.25% -6,502,801 17,559,951 3.63
2019-05-31 69,358,895 66,500,745 4.30% 2,858,150 25,030,857 2.77
2019-05-15 66,500,745 47,574,125 39.78% 18,926,620 22,654,639 2.94
2019-04-30 47,574,125 65,040,585 -26.85% -17,466,460 28,003,751 1.70
2019-04-15 65,040,585 79,891,707 -18.59% -14,851,122 16,480,527 3.95
2019-03-29 79,891,707 103,486,562 -22.80% -23,594,855 20,066,872 3.98
2019-03-15 103,486,562 138,180,124 -25.11% -34,693,562 29,558,567 3.50
2019-02-28 138,180,124 155,954,614 -11.40% -17,774,490 22,945,995 6.02
2019-02-15 155,954,614 42,750,118 264.81% 113,204,496 22,203,420 7.02
2019-01-31 42,750,118 46,873,778 -8.80% -4,123,660 33,192,644 1.29
2019-01-15 46,873,778 49,740,738 -5.76% -2,866,960 23,446,461 2.00

Frequently Asked Questions (FAQ)

What is short interest?

Short interest represents the number of shares sold short but not yet covered. It reflects bearish sentiment and short-selling pressure.

What does Short Interest % of Float mean?

This metric indicates what percentage of a company’s tradable float is currently held as short positions. Higher percentages imply stronger short pressure.

What is considered high short interest?

Typically:
5%–10%: Moderate
10%–20%: High
20%+: Extremely high with elevated squeeze risk

What is a short squeeze?

A short squeeze occurs when short sellers rush to cover their positions as the stock price rises, accelerating the upward movement.

What is Days to Cover (DTC)?

Days to Cover equals short interest divided by average daily trading volume. Higher DTC means shorts need more time to exit their positions.

What level of Days to Cover is risky?

<2 days: Low risk
2–5 days: Moderate
5+ days: High squeeze potential
7–10 days: Extreme risk zone

What causes a short squeeze?

Common triggers include strong earnings, breakouts, upgrades, high volume, low float, or extreme short interest combined with rising prices.

What is a Short Squeeze Score?

It is a composite rating reflecting squeeze risk using short interest, DTC, liquidity, and momentum factors.

Can a stock with low short interest still squeeze?

Yes. Low float or sudden momentum can still trigger squeezes, though the probability is lower than highly shorted stocks.

How often is short interest updated?

FINRA updates short interest twice each month (bi-weekly). Market platforms refresh once the data is released.

Does short interest data get delayed during a U.S. government shutdown?

FINRA is not a government agency, so its operations do not stop during a federal shutdown. However, short interest data can still be delayed indirectly because the reporting and regulatory infrastructure involves broker-dealers and certain SEC processes.

During prolonged shutdowns, minor delays have occurred historically, but FINRA generally continues releasing bi-weekly short interest updates with minimal disruption.

Are short squeezes predictable?

You can identify high-risk conditions, but timing is inherently uncertain. A squeeze requires both high short interest and positive momentum.

Does high short interest guarantee a squeeze?

No. High short interest often reflects negative fundamental expectations and may not result in a squeeze if price pressure does not rise.

Is PFE currently a highly shorted stock?

This depends on the latest Short Interest % of Float shown above. Levels above 10% are considered high, while above 20% are extremely elevated.

What is the current short squeeze risk for PFE?

The Short Squeeze Score at the top of this page provides a real-time assessment of squeeze probability for PFE.

Is PFE a potential short squeeze candidate?

If PFE has high short interest, elevated DTC, or strong upward momentum, the risk of a squeeze increases significantly.

What is the Days to Cover for PFE?

The DTC value for PFE displayed above reflects how long it may take short sellers to exit their positions.

What is the short interest trend for PFE?

The bi-weekly short interest history on this page shows whether bearish positioning in PFE is increasing or decreasing.

Has short interest in PFE increased recently?

The “Change in Short Interest” indicator above reports the most recent change from the previous FINRA update.

What short interest level is considered risky for PFE?

Typically, squeeze risk for PFE becomes elevated when short interest exceeds 10%–20% of float.

How does PFE compare to other heavily shorted stocks?

The Short Squeeze Score allows direct comparison between PFE and other high-SI stocks in the market.

What historical short interest data is available for PFE?

This dashboard includes all available bi-weekly FINRA short interest records for PFE.

Does PFE have low float or liquidity risks?

Low float or poor liquidity magnifies squeeze potential. These attributes indirectly influence PFE’s Short Squeeze Score.

How often is PFE’s short interest updated?

PFE’s short interest is refreshed with each new FINRA bi-weekly update.

What events could trigger a squeeze in PFE?

Potential triggers include positive earnings, analyst upgrades, high-volume breakouts, or unexpected catalysts that push PFE sharply upward.