| Total revenue | $458K+42.2% | $322K-23.0% | $418K-86.0% | $3.0M |
| Compensation and related employee benefits | $32.0M-14.7% | $37.5M | — | — |
| Sales, distribution and marketing | $15.7M-17.8% | $19.1M+87.0% | $10.2M | — |
| Depreciation and amortization | $1.1M-38.5% | $1.8M-0.7% | $1.8M | — |
| General and administrative expenses | $10.2M+0.8% | $10.1M+18.8% | $8.5M+177.6% | $3.1M |
| Expenses of consolidated investment products | $2.7M+18.2% | $2.3M+39.4% | $1.7M | — |
| Total operating expenses | $61.8M-12.8% | $70.9M+44.5% | $49.0M+334.5% | $11.3M |
| Operating income (loss) | $11.1M+173.6% | -$15.1M-745.1% | -$1.8M+82.0% | -$9.9M |
| Equity earnings (losses), net | -$4.9M-180.6% | $6.0M+346.6% | -$2.4M | — |
| Interest and dividends | $8.4M-58.8% | $20.4M+43.4% | $14.2M | — |
| Other income (expense) | -$17.8M-102.1% | $840.7M+804.4% | $93.0M | — |
| Unrealized (loss) gain on digital assets, net | -$796K-111.4% | $7.0M | — | — |
| Realized gain on investments, net | $2.4M+455.1% | $432K-68.9% | $1.4M | — |
| Unrealized gain (losses) on investments net | -$15.6M-137.6% | $41.3M+368.8% | -$15.4M | — |
| Total other income (expense), net | -$27.0M-103.0% | $914.6M+906.3% | $90.9M | — |
| Income (loss) from continuing operations before income taxes | -$15.9M-101.8% | $899.6M+909.5% | $89.1M+986.2% | -$10.1M |
| Income tax (expense) benefit | $23.2M+122.2% | -$104.4M-85658.2% | $122K+293.7% | -$63K |
| Income (loss) from continuing operations, net of tax | $7.3M-99.1% | $795.2M | — | — |
| Income (loss) from discontinued operations, net of tax | -$1.3M-250.4% | -$371K | — | — |
| Net income (loss) | $6.0M-99.2% | $794.8M+790.8% | $89.2M+12747100.0% | -$700 |
| Less: net income attributable to redeemable noncontrolling interests | -$882K+99.9% | -$702.3M-649.4% | -$93.7M | — |
| Net income (loss) attributable to Horizon Kinetics Holding Corporation | $5.1M-94.5% | $92.5M+2158.6% | -$4.5M+49.2% | -$8.9M |
| Net income (loss) from continuing operations, basic | $390-99.1% | $44K | — | -$790 |
| Net income (loss) from continuing operations, diluted | $390-99.1% | $44K | — | -$790 |
| Net income (loss) from discontinued operations, basic | -$70-250.0% | -$20 | — | — |
| Net income (loss) from discontinued operations, diluted | -$70-250.0% | -$20 | — | — |
| Net income (loss) attributable to Horizon Kinetics Holding Corporation, basic | $270-94.7% | $5K+2128.0% | -$250+64.3% | -$700 |
| Net income (loss) attributable to Horizon Kinetics Holding Corporation, diluted | $270-94.7% | $5K+2128.0% | -$250+64.3% | -$700 |
| Basic | $18.6M+2.1% | $18.3M+1.5% | $18.0M+41.0% | $12.8M |
| Diluted | $18.6M+2.1% | $18.3M+1.5% | $18.0M+41.0% | $12.8M |
| Consolidated Investment Products |
| Interest and dividends | $8.4M-58.8% | $20.4M+43.4% | $14.2M | — |
| Other income (expense) | -$17.8M-102.1% | $840.7M+804.4% | $93.0M | — |
| Management and Advisory Fees |
| Total revenue | $458K+42.2% | $322K-23.0% | $418K-86.0% | $3.0M |
| Other Income and Fees |
| Total revenue | $458K+42.2% | $322K-23.0% | $418K-86.0% | $3.0M |