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#1381On The Brink with Castle Island70.0 / 100Get badge
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On The Brink with Castle Island

Hosted by Castle Island Ventures

Hosts Matt Walsh and Nic Carter of Castle Island Ventures explore news and deals in the public blockchain space and talk to some of the leading experts in the industry. Learn more and stay up to date at CastleIsland.vc and follow on twitter @CastleIslandVC

735 episodes · publishes weekly · latest 2026-06-26 · ~35 min/episode

Rank

#1381

Substance

70.0

/ 100

Breakdown

Scored 2026-07
Updated monthly

Finance rank

#192 of 548

Best B2B Finance Podcasts →

Across the index

#1381 of 6183

Substance

Top 22%

outscores 78% of the index

Why it scores where it does

On The Brink with Castle Island ranks #1381 on The B2B Podcast Index with a substance score of 70.0 out of 100, scored across 1 recent episode. It scores highest on specificity & evidence and insight density. The MSTR section is unusually specific for a roundup format: six separate convertible put tranches with exact dates, dollar amounts, and strike prices; BTC liquidation quantities; STRC price levels; M NAV estimates; and a yield-to-price back-calculation. Several other items also have concrete numbers (Iran's $3.8B through Coin X, Ethereum Foundation 20% staff/40% budget cuts, BoE £40B issuer cap).

The five-dimension breakdown

Averaged across 1 recently scored episode, with cited evidence.

Insight Density

14.0 / 20

The MicroStrategy section is genuinely dense with real financial analysis - specific put schedules, BTC liquidation math, and STRC yield reasoning - but roughly half the episode is filler (skunks, deer hibernation, soccer banter, deal listings with zero analysis). The substantive content is real and non-obvious, but it's heavily diluted.

“Funding the full 6.7 billion dollar put schedule would require them selling roughly 111,000 bitcoins”

“everyone's talking about how's he going to come up with the cash to service the preferred. But if he defaults on these convertible bonds, uh, that's a, that's a jeopardize the company, jeopardize the franchise type of thing”

Originality

14.0 / 20

The framing of the convertible bond put schedule as the real risk (rather than the universally-discussed STRC preferred) is a genuinely contrarian and underreported angle. The STRC yield-to-required-return back-calculation is a clean original framework. Everything else - quantum concerns, Polymarket criticism, Ethereum drama - is fairly consensus commentary.

“I find it interesting that no one's kind of talking about these converts. I think that's. That's the big problem”

“My way of reasoning about STRC is what would you have to be paid to hold this instrument?”

Guest Caliber

11.0 / 20

No external guests at all - this is a two-host roundup from two crypto VCs who are legitimate practitioners with real domain knowledge. They've clearly done genuine research on MSTR. The absence of any outside operator or subject-matter expert caps the score significantly.

“I'm Matt Walsh.”

“And I'm Nick.”

Specificity & Evidence

18.0 / 20

The MSTR section is unusually specific for a roundup format: six separate convertible put tranches with exact dates, dollar amounts, and strike prices; BTC liquidation quantities; STRC price levels; M NAV estimates; and a yield-to-price back-calculation. Several other items also have concrete numbers (Iran's $3.8B through Coin X, Ethereum Foundation 20% staff/40% budget cuts, BoE £40B issuer cap).

“He has to come up with $1 billion in September of 2027 if he's not at 183 a share. He has to come up with $2 billion in March of 28 if he's not at 433 a share, 1.5 billion in June of 28 if he's not at 672 a share”

“15%. It has a sell off to $76 which is where it is. 20% has a sell off to uh, $57”

Conversational Craft

13.0 / 20

The two-host format produces decent analytical back-and-forth on MSTR - particularly the 'what should he do vs. what will he do' distinction - but with no guest to challenge or probe, there's no real pressure applied to any claim. Much of the episode is mutual affirmation, and large stretches are unrelated banter that the hosts don't redirect.

“I think there's, what should he do and then what will he do?”

“I think what he will do. And remember he used AI to design this or helped it helped him”

Standout episodes

  • Weekly Roundup 06/26/26 (Quantum EOs, STRC's selloff, more MSTR) (EP.727)

    2026-06-26

    70

Rank over time

First period on the Index - history builds from here.

Episodes

1 scored on substance · 60 tracked in total.

  • Weekly Roundup 06/26/26 (Quantum EOs, STRC's selloff, more MSTR) (EP.727)

    2026-06-26 · 40 min

    70 / 100

Frequently asked

What is On The Brink with Castle Island's substance score?
On The Brink with Castle Island scores 70.0 out of 100 for substance and ranks #1381 on The B2B Podcast Index. That puts it ahead of 78% of the B2B podcasts we rank and #192 of 548 in Finance. The score reflects insight density, originality, guest caliber, specificity and conversational craft across recent episodes - not downloads.
Is On The Brink with Castle Island worth listening to?
Yes - On The Brink with Castle Island outscores 78% of the B2B finance podcasts and shows we rank on substance, so a finance operator is likely to come away with something useful.
Who hosts On The Brink with Castle Island?
On The Brink with Castle Island is hosted by Castle Island Ventures.
How often does On The Brink with Castle Island publish?
On The Brink with Castle Island publishes weekly, has 735 episodes, released its most recent episode on 2026-06-26.
Which On The Brink with Castle Island episode should I start with?
Our highest-scoring recent episode is "Weekly Roundup 06/26/26 (Quantum EOs, STRC's selloff, more MSTR) (EP.727)" (70/100) - a good place to start.

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Topics this show covers

The themes that come up most across this show's episodes.

PolymarketOKXPost-quantum cryptographyMicroStrategy convertible bondsSTRC preferred sharesBitcoin market impactQuantum computing executive orderIntercontinental ExchangeEthereum Foundation restructuringGBTC arbitrage

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