Contrarian Corpus
short seller research note initial thesis
2026-04-16 · 21 pages

Sinch AB SINCH

Sinch's golden-goose subsidiary Inteliquent enables ~45% of US imposter robocalls; with state AGs closing in and zero disclosure, the market is materially mispricing regulatory downside.

N 4 Narrative
V 3 Visual
C 3 Craft
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Thesis

Sinch AB's 2021 $1.14bn acquisition of Inteliquent transformed its financials — Americas revenue jumped from SEK 6bn to SEK 16.5bn and now drives 62% of group sales — but Grizzly argues that growth rests on grey-market scam and robocall traffic. A December 2025 Anti-Robocall Multistate Task Force notice (led by the Indiana, North Carolina and Ohio AGs) concluded that Inteliquent facilitated roughly 45% of sampled Amazon/Apple and SSA/IRS imposter robocalls, on top of prior FTC and SSA OIG actions. Sinch's compliance footprint is just 8 people versus 91 at Twilio, consumer complaint volumes dwarf peers across Scammer.Info, NumberGuru and BBB, and none of the regulatory exposure has been disclosed to investors. Grizzly concludes enforcement is imminent and will materially impair Sinch's revenue, profitability and valuation.

SCQA

Situation

Sinch AB is a Swedish CPaaS provider whose 2021 Inteliquent acquisition turned North America into 62% of revenue and made it the largest independent US voice interconnection network.

Complication

Regulators, scam hunters and consumers all identify Inteliquent as the dominant enabler of US scam and robocalls, with a December 2025 multistate AG notice alleging it facilitates ~45% of imposter robocalls — none of which Sinch has disclosed.

Resolution

Investors should treat Sinch as structurally exposed to imminent regulatory enforcement; management must disclose the task force inquiry and rebuild its near-nonexistent compliance function to peer scale.

Reward

Grizzly does not publish an explicit price target but frames the downside as material impairment of revenue, profitability and valuation once enforcement lands, implying meaningful short-side upside.

The three reasons

  1. 1

    Anti-Robocall Task Force found Inteliquent enables ~45% of US imposter robocalls

  2. 2

    Sinch compliance team has only 8 people vs Twilio's 91 — inadequate by design

  3. 3

    Regulatory actions from FTC, SSA OIG and state AGs remain undisclosed to investors

Primary demands

  • Investors should reassess Sinch's valuation given undisclosed regulatory risk
  • Sinch should disclose the December 2025 Anti-Robocall Task Force notice and related investigations
  • Sinch should materially expand its compliance, fraud and KYC teams to peer levels
  • Sinch should terminate network access for users abusing its services

KPIs cited

Share of US imposter robocalls facilitated by Inteliquent
~45% (900,700 of 2.0M Amazon/Apple; 2.85M of 6.2M SSA/IRS) per Dec 2025 AG task force sample
Traceback notices to Inteliquent since 2019
9,712 total; 5,728 issued after Aug 2022 despite prior warnings
Group revenue before vs after Inteliquent
SEK 16.17bn (2021) to SEK 27.72bn (2022); Americas drove 76% of growth
Americas share of Sinch revenue
Rose from ~37% pre-deal to 62% post-Inteliquent
Compliance headcount (LinkedIn SalesNavigator)
Sinch 8 vs Twilio 91; Sinch fraud 2 vs Twilio 31; KYT 0 vs Twilio 10
Scammer-community mentions
Sinch 800 on Scammer.Info vs Twilio ~500; 573 NumberGuru results vs Twilio 45
Inteliquent BBB rating
1.04 stars out of 5 across 45 reviews
US robocall volume
YouMail Index: 52.8bn (2024) and 52.5bn (2025); implies >23bn routed via Inteliquent
US fraud losses
~$16bn industry per FTC; +430% since 2020; imposter scams 22% of total

Pattern membership

Where this document fits across the library's 12 rhetorical / structural patterns. Orange cells are present in this deck; neutral cells are not.

Composition what's on the 21 slides

Visual + textual elements counted across every slide in this deck. Hover a box for what that element is; click to see every slide in the corpus that uses it.

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Notes

Clean Grizzly-branded short report (navy palette, bear logo, consistent editorial chrome). Argument is well-structured around four investigative angles (consumer, regulatory, industry expert, internal compliance) and leans heavily on primary-source quotes from the Dec 2025 multistate AG task force notice and the Demurrage community report. No explicit price target, no sum-of-parts, no named individual villain — blame assigned to Inteliquent/Sinch as entities. Short position disclosed in boilerplate disclaimer but no percentage. No precedents invoked by analogy. Strong before/after framing around the Inteliquent acquisition and a clear peer-gap chart on compliance headcount (p.18).