Energy · Drilling Oil & Gas Wells · NYSE · CIK 1163739 · FYE Dec 31 · Prices AT CLOSE 2026-08-21 (USD) Last $92.41 · Day +0.64% · Mkt cap $1.5B · P/E (FY) 5.3× · 1Y +175.9% · Off 52W high −18.1% · Vol (1Y) 56.9% Price2023-08-21 → 2026-08-21 NBR close: $110 on 2023-08-21 to $92 on 2026-08-21. Split-adj closes · 240 of 5,310 · price returnⓘ At a glance | Short interest6.9% of sh out | | Days to cover4.1d | | 13F net flow (QoQ)+0.20% | | Top-10 13F concentration52.5% | | Next report (est.)2026-10-27 |
SI 2026-07-31 · 13F 2026-Q1ⓘ Key fundamentalsFY 2025 | P/E (FY)5.3× | | Sales (TTM)$3.21B | | Earnings (TTM)$247.1M | | ROE79.0% | | Net margin9.0% | | ROIC13.0% | | Debt / equity4.22× | | Sales growth 3Y6.3% |
FY ratios · TTM sales/earnings (USD)ⓘ Trailing returns | YTD+70.2% | | 1Y+175.9% | | 3Y−16.1% | | 5Y+28.4% | | 10Y−78.9% | | Since incept. (ann.)−11.8% |
Total return · from 2005-07-11ⓘ Risk | Ann. volatility (1Y)56.9% | | Ann. volatility (3Y)62.4% | | Sharpe (1Y)1.96 | | Sharpe (3Y)0.22 | | Max drawdown (1Y)−31.6% | | Max drawdown (3Y)−82.2% | | Beta (3Y vs SPY)0.49 |
Daily returns, ann.ⓘ Top institutional holders13F 2026-Q1 | Manager | Shares | Value | % sh out | QoQ |
|---|
| BlackRock, Inc. | 1.3M | $112M | 8.20% | +13.7% | | ADAGE CAPITAL PARTNERS GP, L.L.C. | 740,000 | $64M | 4.67% | −41.3% | | VANGUARD CAPITAL MANAGEMENT LLC | 629,289 | $54M | 3.97% | new | | AMERICAN CENTURY COMPANIES INC | 505,900 | $44M | 3.19% | +20.0% | | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 471,718 | $41M | 2.98% | −2.8% | | CIBC WORLD MARKET INC. | 467,701 | $40M | 2.95% | −6.3% | | STATE STREET CORP | 465,000 | $40M | 2.94% | +14.2% | | DIMENSIONAL FUND ADVISORS LP | 447,833 | $39M | 2.83% | +42.1% |
Δ vs 2025-Q4ⓘ Latest reported quarterslast report 2026-07-28 | Period end | Reported | EPS | EPS YoY | Revenue | Rev YoY |
|---|
| 2026-06-30 | 2026-07-28 | −$2.04 | — | $814.8M | −2.2% | | 2026-03-31 | 2026-04-28 | −$1.54 | −170.6% | $783.5M | +6.4% | | 2025-12-31 | 2026-02-11 | $1.07 | — | $797.5M | +9.3% | | 2025-09-30 | 2025-10-28 | $16.85 | — | $818.2M | +11.8% |
As-reported XBRL · next 2026-10-27 est.ⓘ Segment mixFY2025 (ended Dec 2025) Non Us 45% · US 31% · SA 24% geographic · TAGGED revenueⓘ Basis & disclosures - EOD closes · nothing imputed or averaged · absent “—”
- As-of differs by block · 13F = US long, 45+d lag, LOWER bound
- Not investment advice · no recommendation, price target or solicitation
- EDGAR + foreign registers · marketstack (licensed EOD) · spzco.com/methodology
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