STAG Industrial, Inc.
US ˙ NYSE ˙ US85254J1025

SecuritySTAG / STAG Industrial, Inc.
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership726,478 shares
Latest Disclosed Value $ 26,196,796
Citadel Advisors Llc ownership in STAG / STAG Industrial, Inc.

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 726,478 shares of STAG Industrial, Inc. (US:STAG) valued at $26,196,797 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,332,049 shares of STAG Industrial, Inc.. This represents a change in shares of -45.46% during the quarter. The current value of the position is $27,068,570 USD.

Citadel Advisors Llc has a history of taking positions in derivatives of the underlying security (STAG) in the form of stock options. The firm currently holds call options representing 29,500 of underlying shares valued at $1,063,770 USD and put options representing 23,000 of underlying shares valued at $829,380 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

STAG / STAG Industrial, Inc. Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F STAG INDUSTRIAL COM 85254J102 726,478 -605,571 -45.46 26,197 -46.50 0.0042
2026-02-17 2025-12-31 13F STAG INDL COM 85254J102 1,332,049 709,480 113.96 48,966 122.88 0.0074
2025-11-14 2025-09-30 13F STAG INDL COM 85254J102 622,569 622,569 21,970 0.0033
2025-08-14 2025-06-30 13F STAG INDL COM 85254J102 0 -1,827,755 -100.00 0 -100.00
2025-05-15 2025-03-31 13F STAG INDL COM 85254J102 1,827,755 780,202 74.48 66,019 86.34 0.0125
2025-02-14 2024-12-31 13F STAG INDL COM 85254J102 1,047,553 1,040,207 14,160.18 35,428 12,244.25 0.0061
2024-11-14 2024-09-30 13F STAG INDL COM 85254J102 7,346 7,346 287 0.0001
2024-02-14 2023-12-31 13F STAG INDL COM 85254J102 0 -314 -100.00 0 -100.00
2023-11-14 2023-09-30 13F STAG INDL COM 85254J102 314 -90,158 -99.65 11 -99.69 0.0000
2023-08-14 2023-06-30 13F STAG INDL COM 85254J102 90,472 -221,564 -71.01 3,246 -69.24 0.0007
2023-05-15 2023-03-31 13F STAG INDL COM 85254J102 312,036 273,796 715.99 10,553 754.49 0.0023
2023-02-14 2022-12-31 13F STAG INDL COM 85254J102 38,240 -67,802 -63.94 1,236 -59.04 0.0003
2022-11-14 2022-09-30 13F STAG INDL COM 85254J102 106,042 -37,622 -26.19 3,015 -32.03 0.0007
2022-08-15 2022-06-30 13F STAG INDL COM 85254J102 143,664 -382,399 -72.69 4,436 -79.61 0.0011
2022-05-16 2022-03-31 13F STAG INDL COM 85254J102 526,063 -174,718 -24.93 21,753 -35.28 0.0045
2022-02-14 2021-12-31 13F STAG INDL COM 85254J102 700,781 515,997 279.24 33,610 363.39 0.0069
2021-11-15 2021-09-30 13F STAG INDL Cmn 85254J102 184,784 105,526 133.14 7,253 144.54 0.0015
2021-08-16 2021-06-30 13F STAG INDL COM 85254J102 79,258 -63,704 -44.56 2,966 -38.27 0.0007
2021-05-21 2021-03-31 13F/A-1 STAG INDL COM 85254J102 142,962 76,645 115.57 4,805 131.34 0.0012
2021-05-17 2021-03-31 13F STAG INDL COM 85254J102 142,962 76,645 4,805 0.0012
2021-02-16 2020-12-31 13F STAG INDL COM 85254J102 66,317 66,317 2,077 0.0005
2020-11-16 2020-09-30 13F STAG INDL Cmn 85254J102 0 -163,862 -100.00 0 -100.00
2020-08-14 2020-06-30 13F STAG INDL Cmn 85254J102 163,862 -294,940 -64.28 4,804 -53.50 0.0017
2020-05-15 2020-03-31 13F STAG INDL Cmn 85254J102 458,802 234,986 104.99 10,332 46.22 0.0046
2020-02-14 2019-12-31 13F STAG INDL Cmn 85254J102 223,816 -30,325 -11.93 7,066 -5.69 0.0031
2019-11-14 2019-09-30 13F STAG INDL Cmn 85254J102 254,141 164,558 183.69 7,492 176.56 0.0035
2019-08-14 2019-06-30 13F STAG INDL Cmn 85254J102 89,583 -233,709 -72.29 2,709 -71.74 0.0012
2019-05-15 2019-03-31 13F STAG INDL Cmn 85254J102 323,292 183,363 131.04 9,586 175.38 0.0048
2019-02-14 2018-12-31 13F STAG INDL Cmn 85254J102 139,929 -515,087 -78.64 3,481 -80.68 0.0019
2018-11-13 2018-09-30 13F STAG INDL Cmn 85254J102 655,016 575,608 724.87 18,013 733.16 0.0081
2018-08-14 2018-06-30 13F/A-1 STAG INDL Cmn 85254J102 79,408 62,204 361.57 2,162 424.76 0.0011
2018-08-10 2018-06-30 13F STAG INDL Cmn 85254J102 79,408 62,204 2,162
2018-05-14 2018-03-31 13F/A-1 STAG INDL Cmn 85254J102 17,204 -88,599 -83.74 412 -85.75 0.0002
2018-05-11 2018-03-31 13F STAG INDL Cmn 85254J102 17,204 -88,599 412
2018-02-09 2017-12-31 13F STAG INDL Cmn 85254J102 105,803 -8,619 -7.53 2,892 -7.99 0.0018
2017-11-09 2017-09-30 13F STAG INDL Cmn 85254J102 114,422 -317,345 -73.50 3,143 -73.63 0.0024
2017-08-11 2017-06-30 13F STAG INDL Cmn 85254J102 431,767 369,856 597.40 11,917 669.34 0.0101
2017-05-12 2017-03-31 13F STAG INDL Cmn 85254J102 61,911 -139,888 -69.32 1,549 -67.84 0.0014
2017-02-10 2016-12-31 13F STAG INDL Cmn 85254J102 201,799 184,543 1,069.44 4,817 1,038.77 0.0049
2017-01-31 2016-09-30 13F/A-1 STAG INDL Cmn 85254J102 17,256 -55,729 -76.36 423 -75.66 0.0004
2016-11-10 2016-09-30 13F STAG INDUSTRIAL Cmn 85254J102 17,256 423
2017-01-31 2016-06-30 13F/A-1 STAG INDL Cmn 85254J102 72,985 -177,371 -70.85 1,738 -65.90 0.0019
2016-08-12 2016-06-30 13F STAG INDUSTRIAL Cmn 85254J102 72,985 1,738
2017-01-31 2016-03-31 13F/A-1 STAG INDL Cmn 85254J102 250,356 83,909 50.41 5,097 65.97 0.0064
2016-05-13 2016-03-31 13F STAG INDUSTRIAL Cmn 85254J102 250,356 5,097
2017-01-31 2015-12-31 13F/A-1 STAG INDL Cmn 85254J102 166,447 153,284 1,164.51 3,071 1,184.94 0.0034
2016-02-12 2015-12-31 13F STAG INDUSTRIAL Cmn 85254J102 166,447 3,071
2015-11-16 2015-09-30 13F STAG INDUSTRIAL Cmn 85254J102 13,163 -400,792 -96.82 239 -97.11 0.0002
2015-08-14 2015-06-30 13F STAG INDUSTRIAL Cmn 85254J102 413,955 -659,868 -61.45 8,280 -67.22 0.0073
2015-05-15 2015-03-31 13F STAG INDUSTRIAL Cmn 85254J102 1,073,823 585,820 120.04 25,256 111.24 0.0281
2015-02-17 2014-12-31 13F STAG INDUSTRIAL Cmn 85254J102 488,003 178,498 57.67 11,956 86.52 0.0145
2014-11-14 2014-09-30 13F STAG INDUSTRIAL Cmn 85254J102 309,505 189,312 157.51 6,410 122.11 0.0080
2014-08-14 2014-06-30 13F STAG INDUSTRIAL Cmn 85254J102 120,193 -150,707 -55.63 2,886 -55.80 0.0039
2014-05-15 2014-03-31 13F STAG INDUSTRIAL Cmn 85254J102 270,900 60,797 28.94 6,529 52.40 0.0090
2014-02-14 2013-12-31 13F STAG INDUSTRIAL Cmn 85254J102 210,103 49,343 30.69 4,284 32.43 0.0056
2013-11-14 2013-09-30 13F STAG INDUSTRIAL Cmn 85254J102 160,760 105,473 190.77 3,235 193.29 0.0049
2013-08-14 2013-06-30 13F STAG INDUSTRIAL Cmn 85254J102 55,287 55,287 1,103 0.0019
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F STAG INDUSTRIAL COM Call 29,500 3.87 1,064 1.92 n/a n/a n/a
2026-02-17 2025-12-31 13F STAG INDL COM Call 28,400 -56.71 1,044 -54.95 n/a n/a n/a
2025-11-14 2025-09-30 13F STAG INDL COM Call 65,600 31.73 2,315 28.18 n/a n/a n/a
2025-08-14 2025-06-30 13F STAG INDL COM Call 49,800 -49.95 1,807 -49.74 n/a n/a n/a
2025-05-15 2025-03-31 13F STAG INDL COM Call 99,500 117.72 3,594 132.56 n/a n/a n/a
2025-02-14 2024-12-31 13F STAG INDL COM Call 45,700 8.29 1,546 -6.31 n/a n/a n/a
2024-11-14 2024-09-30 13F STAG INDL COM Call 42,200 -47.12 1,650 -42.68 n/a n/a n/a
2024-08-14 2024-06-30 13F STAG INDL COM Call 79,800 -22.60 2,878 -27.40 n/a n/a n/a
2024-05-15 2024-03-31 13F STAG INDL COM Call 103,100 69.57 3,963 66.02 n/a n/a n/a
2024-02-14 2023-12-31 13F STAG INDL COM Call 60,800 31.60 2,387 49.75 n/a n/a n/a
2023-11-14 2023-09-30 13F STAG INDL COM Call 46,200 -4.94 1,594 -8.55 n/a n/a n/a
2023-08-14 2023-06-30 13F STAG INDL COM Call 48,600 29.60 1,744 37.46 n/a n/a n/a
2023-05-15 2023-03-31 13F STAG INDL COM Call 37,500 14.68 1,268 20.08 n/a n/a n/a
2023-02-14 2022-12-31 13F STAG INDL COM Call 32,700 165.85 1,057 201.71 n/a n/a n/a
2022-11-14 2022-09-30 13F STAG INDL COM Call 12,300 -26.79 350 -32.56 n/a n/a n/a
2022-08-15 2022-06-30 13F STAG INDL COM Call 16,800 97.65 519 47.86 n/a n/a n/a
2022-05-16 2022-03-31 13F STAG INDL COM Call 8,500 8.97 351 -6.15 n/a n/a n/a
2022-02-14 2021-12-31 13F STAG INDL COM Call 7,800 -15.22 374 3.60 n/a n/a n/a
2021-11-15 2021-09-30 13F STAG INDL Cmn Call 9,200 -75.98 361 -74.83 n/a n/a n/a
2021-08-16 2021-06-30 13F STAG INDL COM Call 38,300 185.82 1,434 218.67 n/a n/a n/a
2021-05-21 2021-03-31 13F/A STAG INDL COM Call 13,400 -17.79 450 -11.94 n/a n/a n/a
2021-05-17 2021-03-31 13F STAG INDL COM Call 13,400 450 n/a n/a n/a
2021-02-16 2020-12-31 13F STAG INDL COM Call 16,300 -24.19 511 -22.10 n/a n/a n/a
2020-11-16 2020-09-30 13F STAG INDL COM Call 21,500 14.36 656 19.06 n/a n/a n/a
2020-08-14 2020-06-30 13F STAG INDL Cmn Call 18,800 84.31 551 139.57 n/a n/a n/a
2020-05-15 2020-03-31 13F STAG INDL Cmn Call 10,200 59.38 230 13.86 n/a n/a n/a
2020-02-14 2019-12-31 13F STAG INDL Cmn Call 6,400 -39.05 202 -34.84 n/a n/a n/a
2019-11-14 2019-09-30 13F STAG INDL Cmn Call 10,500 310 n/a n/a n/a
2019-08-14 2019-06-30 13F STAG INDL Cmn Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-05-15 2019-03-31 13F STAG INDL Cmn Call 7,800 -22.00 231 -7.23 n/a n/a n/a
2019-02-14 2018-12-31 13F STAG INDL Cmn Call 10,000 -16.67 249 -24.55 n/a n/a n/a
2018-11-13 2018-09-30 13F STAG INDL Cmn Call 12,000 330 n/a n/a n/a
2018-05-14 2018-03-31 13F/A STAG INDL Cmn Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-02-09 2017-12-31 13F STAG INDL Cmn Call 9,000 3.45 246 2.93 n/a n/a n/a
2017-11-09 2017-09-30 13F STAG INDL Cmn Call 8,700 4.82 239 14.90 n/a n/a n/a
2017-05-12 2017-03-31 13F STAG INDL Cmn Call 8,300 208 n/a n/a n/a
2017-02-10 2016-12-31 13F STAG INDUSTRIAL Cmn Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-01-31 2016-09-30 13F/A STAG INDL Cmn Call 10,600 21.84 260 25.60 n/a n/a n/a
2016-11-10 2016-09-30 13F STAG INDUSTRIAL Cmn Call 10,600 260 n/a n/a n/a
2017-01-31 2016-06-30 13F/A STAG INDL Cmn Call 8,700 -33.08 207 -21.89 n/a n/a n/a
2016-08-12 2016-06-30 13F STAG INDUSTRIAL Cmn Call 8,700 207 n/a n/a n/a
2017-01-31 2016-03-31 13F/A STAG INDL Cmn Call 13,000 35.42 265 49.72 n/a n/a n/a
2016-05-13 2016-03-31 13F STAG INDUSTRIAL Cmn Call 13,000 265 n/a n/a n/a
2017-01-31 2015-12-31 13F/A STAG INDL Cmn Call 9,600 100.00 177 103.45 n/a n/a n/a
2016-02-12 2015-12-31 13F STAG INDUSTRIAL Cmn Call 9,600 177 n/a n/a n/a
2015-11-16 2015-09-30 13F STAG INDUSTRIAL Cmn Call 4,800 60.00 87 45.00 n/a n/a n/a
2015-08-14 2015-06-30 13F STAG INDUSTRIAL Cmn Call 3,000 200.00 60 150.00 n/a n/a n/a
2015-05-15 2015-03-31 13F STAG INDUSTRIAL Cmn Call 1,000 25.00 24 20.00 n/a n/a n/a
2015-02-17 2014-12-31 13F STAG INDUSTRIAL Cmn Call 800 -38.46 20 -25.93 n/a n/a n/a
2014-11-14 2014-09-30 13F STAG INDUSTRIAL Cmn Call 1,300 -48.00 27 -55.00 n/a n/a n/a
2014-08-14 2014-06-30 13F STAG INDUSTRIAL Cmn Call 2,500 60 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F STAG INDUSTRIAL COM Put 23,000 41.10 829 38.40 n/a n/a n/a
2026-02-17 2025-12-31 13F STAG INDL COM Put 16,300 -9.94 599 -6.11 n/a n/a n/a
2025-11-14 2025-09-30 13F STAG INDL COM Put 18,100 12.42 639 9.25 n/a n/a n/a
2025-08-14 2025-06-30 13F STAG INDL COM Put 16,100 -12.97 584 -12.57 n/a n/a n/a
2025-05-15 2025-03-31 13F STAG INDL COM Put 18,500 -42.90 668 -39.00 n/a n/a n/a
2025-02-14 2024-12-31 13F STAG INDL COM Put 32,400 39.66 1,096 20.86 n/a n/a n/a
2024-11-14 2024-09-30 13F STAG INDL COM Put 23,200 -34.46 907 -29.00 n/a n/a n/a
2024-08-14 2024-06-30 13F STAG INDL COM Put 35,400 -29.76 1,277 -34.12 n/a n/a n/a
2024-05-15 2024-03-31 13F STAG INDL COM Put 50,400 102.41 1,937 98.26 n/a n/a n/a
2024-02-14 2023-12-31 13F STAG INDL COM Put 24,900 25.76 978 43.05 n/a n/a n/a
2023-11-14 2023-09-30 13F STAG INDL COM Put 19,800 44.53 683 39.10 n/a n/a n/a
2023-08-14 2023-06-30 13F STAG INDL COM Put 13,700 -56.78 492 -54.20 n/a n/a n/a
2023-05-15 2023-03-31 13F STAG INDL COM Put 31,700 -15.24 1,072 -11.26 n/a n/a n/a
2023-02-14 2022-12-31 13F STAG INDL COM Put 37,400 293.68 1,208 347.41 n/a n/a n/a
2022-11-14 2022-09-30 13F STAG INDL COM Put 9,500 -6.86 270 -14.29 n/a n/a n/a
2022-08-15 2022-06-30 13F STAG INDL COM Put 10,200 -41.71 315 -56.49 n/a n/a n/a
2022-05-16 2022-03-31 13F STAG INDL COM Put 17,500 2.34 724 -11.71 n/a n/a n/a
2022-02-14 2021-12-31 13F STAG INDL COM Put 17,100 -32.41 820 -17.42 n/a n/a n/a
2021-11-15 2021-09-30 13F STAG INDL Cmn Put 25,300 123.89 993 134.75 n/a n/a n/a
2021-08-16 2021-06-30 13F STAG INDL COM Put 11,300 -23.65 423 -14.89 n/a n/a n/a
2021-05-21 2021-03-31 13F/A STAG INDL COM Put 14,800 0.68 497 8.04 n/a n/a n/a
2021-05-17 2021-03-31 13F STAG INDL COM Put 14,800 497 n/a n/a n/a
2021-02-16 2020-12-31 13F STAG INDL COM Put 14,700 0.68 460 3.37 n/a n/a n/a
2020-11-16 2020-09-30 13F STAG INDL COM Put 14,600 -17.98 445 -14.75 n/a n/a n/a
2020-08-14 2020-06-30 13F STAG INDL Cmn Put 17,800 -25.52 522 -2.97 n/a n/a n/a
2020-05-15 2020-03-31 13F STAG INDL Cmn Put 23,900 -16.43 538 -40.42 n/a n/a n/a
2020-02-14 2019-12-31 13F STAG INDL Cmn Put 28,600 169.81 903 181.31 n/a n/a n/a
2019-08-14 2019-06-30 13F STAG INDL Cmn Put 10,600 -39.43 321 -38.15 n/a n/a n/a
2019-05-15 2019-03-31 13F STAG INDL Cmn Put 17,500 49.57 519 78.35 n/a n/a n/a
2019-02-14 2018-12-31 13F STAG INDL Cmn Put 11,700 9.35 291 -1.02 n/a n/a n/a
2018-11-13 2018-09-30 13F STAG INDL Cmn Put 10,700 294 n/a n/a n/a
2018-08-14 2018-06-30 13F/A STAG INDL Cmn Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-05-14 2018-03-31 13F/A STAG INDL Cmn Put 9,800 234 n/a n/a n/a
2018-05-11 2018-03-31 13F STAG INDL Cmn Put 9,800 234 n/a n/a n/a
2016-08-12 2016-06-30 13F STAG INDUSTRIAL Cmn Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-01-31 2016-03-31 13F/A STAG INDL Cmn Put 13,600 147.27 277 174.26 n/a n/a n/a
2016-05-13 2016-03-31 13F STAG INDUSTRIAL Cmn Put 13,600 277 n/a n/a n/a
2017-01-31 2015-12-31 13F/A STAG INDL Cmn Put 5,500 -54.92 101 -54.50 n/a n/a n/a
2016-02-12 2015-12-31 13F STAG INDUSTRIAL Cmn Put 5,500 101 n/a n/a n/a
2015-11-16 2015-09-30 13F STAG INDUSTRIAL Cmn Put 12,200 -15.28 222 -22.92 n/a n/a n/a
2015-08-14 2015-06-30 13F STAG INDUSTRIAL Cmn Put 14,400 350.00 288 284.00 n/a n/a n/a
2015-05-15 2015-03-31 13F STAG INDUSTRIAL Cmn Put 3,200 28.00 75 22.95 n/a n/a n/a
2015-02-17 2014-12-31 13F STAG INDUSTRIAL Cmn Put 2,500 -50.98 61 -42.45 n/a n/a n/a
2014-11-14 2014-09-30 13F STAG INDUSTRIAL Cmn Put 5,100 750.00 106 657.14 n/a n/a n/a
2014-08-14 2014-06-30 13F STAG INDUSTRIAL Cmn Put 600 14 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.