Reading a 10-Q like the Cartographer seat — the DSO/A-R stretch that flipped BYRN before the drawdown

If the only thing you read in a 10-Q is the income statement, you miss the deterioration. The working-capital footnotes are where the surprise blow-ups telegraph themselves a quarter or two before the print. Walk how Quorum's forensic-filings seat reads them — on BYRN, where the drawdown was named in the 10-Q two quarters before the move.

The mechanic: DSO and what it tells you

Days-Sales-Outstanding = (Accounts Receivable / Quarterly Revenue) × 90. A rising DSO means revenue is being booked but cash isn't arriving — either you're extending credit to win deals, or customer concentration has reached a level where one or two customers are dictating terms.

BYRN's DSO across 8 quarters (approximated from the 10-Q A/R line and reported revenue):

• Q-7: ~38 days. Q-6: ~42. Q-5: ~51. Q-4: ~63. Q-3: ~78. Q-2: ~96. Q-1: ~115. Q-0: ~136. +258% across the run.

That's not "noisy quarter." That's a structural payment-cycle shift. The question is: caused by what?

Where the 10-Q tells you why

The forensic-filings seat doesn't infer; it cites. From BYRN's 10-Q disclosures, the load-bearing facts:

• Customer concentration disclosure: a single customer represented >25% of revenue in the affected quarter (the segment commentary names the channel).
• A/R aging buckets: the >90-day-aged bucket grew from sub-5% to north of 20% across the same period — that's not slower payment, that's stretched terms.
• Inventory build: finished-goods inventory rose alongside, suggesting the channel customer was holding inventory rather than selling through.

The frameworks the seat applies

Two quantitative tells line up:

• Beneish M-score — DSRI (Days Sales in Receivables Index): if current-period DSO > prior-period DSO by >1.07×, the DSRI component flags. BYRN's ratio in the inflection quarter was >1.4×. Alone it's a yellow flag; with the other Beneish components it climbs toward a red M-score.
• Piotroski F-score — working-capital row: a deterioration in current-ratio + a build in inventory + falling FCF/net-income conversion each subtract from the F-score. BYRN scored low on all three.

How the Bull conceded under rebuttal

The Council's visionary seat opened with a defensible BUY thesis on BYRN — TAM expansion, brand strength, gross-margin durability. Confronted with the DSO + customer-concentration + A/R-aging triple from the bear syndicate, its own named falsifier fired: "if any single customer exceeds 20% of revenue with worsening A/R aging, the bull thesis fails." The seat dropped BUY → HOLD verbatim. That's the system working — the dissent didn't get laundered; the bull conceded under its own stated falsifier.

What this costs to run

The forensic-filings seat runs on every tier — but with different mechanics:

• Quorum Lite (free, 20 runs/day): reads pre-computed filing notes (cached snapshots refreshed by the daily filing sweep). Median ~5-15 seconds per ticker; the DSO chart + Beneish/Piotroski components render from the cache.
• Quorum Pro ($39/mo, $29/mo annual; FIFO queue, 15-day shared verdict reuse): cloud-syndicate council; typically 60-90s when the queue is empty. A complete ticker analysis from the prior 15 days is reused; older or missing work is queued for refresh.
• Quorum Pro+ ($99/mo, $79/mo annual; includes 10 Max briefings/day): frontier-model briefing reads the raw 10-Q with the short-seller prompt enabled — explicitly asking the deepest model we route to to argue the bear case using the filing text. ~3-5 minutes async.

For a working-capital screen on a watchlist, Lite is sufficient. For the BYRN-class contested call where the filing read is the entire thesis, Pro+ is the right ticket.

See the BYRN Council debate →   Tier comparison →