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PEAK6 LLC

Position in CNR — Core Natural Resources, Inc.

CIK 1389958 AUSTIN, TX

Position in CNR

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$107,767
+$37,137 QoQ
Shares Held
1,029
+28.9% QoQ
Ownership
0.002%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2025
5 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in CNR Over Time

Shares Held

Position Value (USD)

Derivatives in CNR

reported options exposure · as of Mar 31, 2026
CallValue
$1,759,464
CallShares
16,800
PutValue
$1,560,477
PutShares
14,900

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Thermal Coal

Energy · as of Mar 31, 2026

PEAK6 LLC holds $4,554,468 across 2 Thermal Coal names. CNR ranks #2 (2.4% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 CNR
Core Natural Resources, Inc.
This page
1,029 $107,767

All Filings in CNR

Export CSV
11 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $1,560,477 14,900
2026-03-31 $1,759,464 16,800
2026-03-31 $107,767 1,029
2025-12-31 $451,401 5,100
2025-12-31 $70,630 798
2025-09-30 $425,748 5,100
2025-09-30 $13,490,368 161,600
2025-06-30 $997,282 14,300
2025-03-31 $979,170 12,700
2025-03-31 $1,457,190 18,900
2025-03-31 $533,300 6,917