CoStar Group, Inc. (CSGP) Cash Flow Statement

The dispersion is material: FFO exceeded operating cash flow in 2025Q3 ($44.3M vs $68.2M, i.e. 65%) and again in 2026Q3, but in 2025Q1 and 2026Q1 the relationship inverted, with operating cash flow running ahead of FFO by a wide margin. This suggests the OCF line is absorbing large non-FFO movements — likely deferred revenue swings tied to subscription billings and marketing timing — rather than tracking underlying property or platform economics. Analysts should treat any single-quarter FFO-to-OCF ratio as noise; the more useful signal is that the ten-quarter OCF range of $53M to $188M is far tighter than the FFO range of $32.5M to $172M, indicating OCF is the more stable but less informative measure of operating momentum.

The AFFO path is the most important trend in this dataset: $20.3M in 2024Q4, then -$46.7M, -$79.8M, -$186.4M, and -$184.7M across 2025, before recovering to $31M, $33M, and $15M in 2026. That recovery is real but modest relative to FFO, implying the gap is driven by recurring items deducted between FFO and AFFO — notably stock-based compensation of $32M-$42M per quarter and capitalized-versus-expensed marketing. With no dividend declared, there is no coverage ratio to breach, but the implication is that AFFO is effectively funding the Homes.com investment cycle rather than accruing to shareholders. The 2026Q3 sequential decline from $33M to $15M warrants monitoring, as it may indicate the margin inflection thesis is not yet visible in distributable cash.

The absence of a dividend removes the most common REIT stressor — payout coverage — but it also means the cash flow statement's primary outlet is investment activity, which has been highly volatile. Cumulative operating cash flow over the ten quarters is roughly $1.14B, comfortably funding cumulative negative free cash flow periods without evident reliance on external equity issuance in the data provided. Combined with a Debt/Equity ratio of 0.14, this suggests meaningful balance-sheet capacity to absorb an extended investment phase. The judgment call for investors is whether that unused capacity represents strategic optionality or reflects an unproven return profile that has not yet justified returning capital, particularly given the skipped guidance at the 2026-10-27 report.

The distortion runs in both directions: the ratio was negative in 2025Q1 and 2025Q3 because net income itself turned negative while FFO remained positive, and the 2.54x reading in 2026Q3 reflects a partial normalization rather than a structural change. Two implications follow. First, any P/E-based valuation of CoStar is effectively pricing a non-cash charge schedule, which explains the extreme trailing multiples in the peer table. Second, the volatility in net income — from -$30.9M to $74M within five quarters — reflects amortization and acquisition-related marks rather than operating performance, so the operating margin of -2.22% cited in prior analysis should be read alongside FFO and operating cash flow, both of which point to a cash-generative core beneath the GAAP presentation.