Markets | S&P 500 · Nasdaq · BTC Conviction
← All Briefs
← Previous Next →
Meridian Morning Brief — 2026-05-15
[Research Brief] May 15, 2026 — Dow Approaching 50K on AI Tape, TransDigm Initiation, Berkshire Rolling Review

🧭 MACRO SNAPSHOT

Risk-on tape continues. S&P 500 at 7,444 with VIX at 17.87 and HY credit spreads compressed to 282bps — none of the classical stress signals are flashing. The 2s/10s curve is positively sloped (10Y 4.46% vs. 2Y 3.98%, ~48bps), reflecting a market that has digested Fed funds at 3.64% and is now positioning for further easing. CPI at 332.4 (index level) and unemployment at 4.3% give the Fed cover to stay patient, but the political winds are shifting: Governor Miran's resignation and the Warsh trial balloon, combined with Bessent's "substantial disinflation" rhetoric, are being read as a setup for a more dovish, Trump-friendly Fed regime. Growth equities — particularly the AI complex — are the obvious beneficiary, and the tape is reflecting that.

Two cross-currents worth flagging. First, the community-surfaced point on temp-help employment being down 21.4% YoY is a legitimate leading indicator — that's been a clean pre-recession signal since 1990, and it sits uneasily next to the headline 4.3% UR. Second, the AI rotation is broadening but also getting more crowded: $NVDA at $5.7T, Cisco ripping into earnings, Cerebras (CBRS) up 65%+ on its debut to a $95B Day 1 cap. Pent-up institutional demand for AI hardware is real, but Day-1 IPO pops of that magnitude historically mark frothy zones, not entry points. We are not changing exposure on this — but we are watching for breadth deterioration beneath the AI mega-caps.


₿ BITCOIN DAILY WRITE-UP

Price & Market Structure
BTC trades at $80,675, +1.78% on the day, +8.97% over 30 days, and has stabilized after the recent push above $80K. We remain ~37% off the $126K ATH, ~13 months past halving. Dominance at 58.4% indicates capital is still concentrated in BTC rather than rotating to alts — a regime that has historically been more characteristic of accumulation or mid-cycle phases than blow-off tops.

Structural Thesis
The core reason to hold is unchanged: post-halving supply scarcity (~450 BTC/day issuance against $1.6T market cap) meets a structurally different demand profile than prior cycles due to spot ETFs and growing corporate/institutional treasury adoption. This is a 3–5 year hold based on monetary properties and adoption math, not technical patterns.

What Happened This Week
Two notable structural items: (1) Senate advanced the Clarity Act, a meaningful regulatory tailwind (per Bitcoin Magazine, 2026-05); (2) Onramp raised $12.5M Series A at $135M for institutional multi-sig custody — small in dollars, but a continued signal that the institutional rails are deepening. The Bitcoin Layer also flagged a "Red Dot" flash liquidity indicator update, which we cannot independently verify and are flagging only as an input.

Bull / Bear Scorecard
Bull:
- Supply shock still working through the cycle — issuance is at all-time lows relative to market cap.
- Month 13 post-halving has historically preceded the strongest cycle phases (2017, 2021 pattern).
- Regulatory clarity (Clarity Act progression) and continued institutional custody buildout (Onramp) extend the addressable buyer base.

Bear:
- The 37% drawdown from ATH at month 13 deviates from historical pattern — prior cycles peaked later in the window. Non-trivial probability the cycle top is in.
- ETF flow data is the swing variable and we do not have current confirmation it's in net inflow.
- BTC -24% YoY means we cannot honestly call this a confirmed uptrend.

Conviction Check: Action: STRONG HOLD | Conviction: 8/10. Unchanged. Nothing in the past week alters either the structural thesis or the bear case; price action is consistent with a contested cycle position that we will resolve over the next 2-3 quarters of ETF flow data.

What to Watch
- Sustained spot Bitcoin ETF flow direction over the next 4–8 weeks (the single most important variable).
- Clarity Act final passage or stall — affects institutional treasury adoption velocity.
- A clean break above $90K (re-asserts uptrend) or sustained loss of $72K (confirms top-in thesis).

Community Pulse
Sentiment is constructive but not euphoric. Reddit threads skew personal-adoption ("first BTC payment as a surgeon," "paid for haircut with BTC") — the kind of organic utility chatter that tends to appear in mid-cycle, not at tops. The CryptoCurrency "We Banned Memes 8 Years Ago" retrospective is interesting community-culture context but not signal. Newsletter side, The Bitcoin Layer's "Landlords of Compute" piece is reframing miners as compute landlords — worth tracking as the mining/AI compute convergence narrative gains traction.


🔬 TODAY'S DEEP DIVES

TDG — TransDigm Group — NEW IDEA
Conviction: 7/10 | Status: MONITORING | Sector: Industrials (Aerospace)

WHAT THEY DO
TransDigm designs and manufactures highly engineered, proprietary aircraft components — actuators, ignition systems, pumps, valves, power conditioning, motors/generators, databus products. Critically, ~80% of revenue is sole-source or proprietary, and the company sells into both OEM (Boeing, Airbus) and the much higher-margin commercial aftermarket. They are essentially a private-equity-style roll-up that buys niche aerospace parts businesses, prices to value, and lets the aftermarket annuity compound.

WHY IT'S INTERESTING NOW
The stock is down -9.4% over 1Y and -2.98% over the past week — multiple compression has begun while the operating thesis remains intact. Commercial RPKs continue recovering, aging fleets (787, A320ceo) are entering peak aftermarket years, and the defense spending environment is elevated. The Boeing/China story (500 jets, per Fortune) is a direct read-through: TDG content per aircraft is meaningful and the aftermarket tail lasts decades. Worth watching the May 5 and April 17/15 8-Ks — those need a primary-source EDGAR pull before any conviction upgrade.

BULL CASE
- Aftermarket dominance + flying hour recovery: IATA projects commercial traffic CAGR of 3-4% through 2030, with aging fleets entering high-margin aftermarket years. TDG's aftermarket mix drives outsized incremental margins.
- Defense tailwind: Elevated NATO and US defense outlays directly benefit the proprietary parts portfolio.
- Capital allocation: Management has a long track record of value-creative bolt-ons and aggressive return of capital via special dividends.

BEAR CASE
- Valuation full, not cheap: Forward P/E 25.2x, EV/EBITDA 19.4x (yfinance). Leaves little margin for error. The -9.4% 1Y return suggests multiple compression already underway.
- Forward EPS of $46.79 vs. TTM $32.06 implies the market is paying for execution that must materialize.
- Leverage is meaningful — TDG runs a debt-heavy capital structure that works in benign rate environments but compresses returns if rates re-accelerate.

KEY METRICS: Forward P/E 25.2x | EV/EBITDA 19.4x | Aftermarket ~55%+ of EBITDA | ~80% proprietary/sole-source content. Differentiator: closest public analogue is HEICO, but TDG's PE-style pricing discipline and special-dividend cadence are unique.

BOTTOM LINE: Belongs on the list at 7/10 — high-quality compounder in a sector with secular tailwinds, but the entry needs to be at a better valuation before we move to RECOMMEND.


DINO — HF Sinclair Corporation — NEW IDEA (DROPPED SAME DAY)
Conviction: 5/10 | Status: MONITORING → DROPPED | Sector: Energy (Refining)

WHAT THEY DO
HF Sinclair is a mid-cap independent downstream energy company formed from the 2022 HollyFrontier/Sinclair merger. Five segments: Refining (dominant — ~7 refineries, ~678 Mbpd capacity, Mid-Continent/Rockies/Southwest), Marketing (Sinclair-branded retail), Renewables (renewable diesel), Lubricants, and Midstream.

WHY IT'S INTERESTING NOW
Stock is up 94% over 12 months and ~15% in the past month. EV/EBITDA of 6.5x and 0.45x P/S look cheap on the surface, but refining is highly cyclical and the question is whether you're paying 10x peak earnings or 14-17x normalized.

BULL CASE
- Genuinely cheap on multiple metrics. 6.5x EV/EBITDA, 0.45x P/S, 11.9% operating margins — below historical peer averages (VLO, MPC typically 7-9x).
- If mid-cycle 3-2-1 crack spreads normalize at $20-25/bbl, DINO can sustain $1.2-1.5B FCF, supporting a >10% shareholder yield.

BEAR CASE
- This is a cyclical at or near peak earnings. Up 94% in 12 months — much of the easy money has been made.
- P/E 10x on peak-cycle EPS is not cheap if normalized EPS is $4-5 vs. trailing $6.66. That implies 14-17x normalized, in line with cyclical averages with no margin of safety.
- Renewable diesel margins have collapsed sector-wide; that segment is a drag, not a catalyst.

KEY METRICS: EV/EBITDA 6.5x | P/S 0.45x | Op. margin 11.9% | 1Y return +94%. Peer differentiator vs. VLO/MPC: smaller scale, more Mid-Continent geographic concentration.

BOTTOM LINE: 5/10 conviction is below the threshold to hold a slot on the 50-name list — DROPPED today. Refining is genuinely interesting at the right point in the cycle, but late-cycle entry after a 94% rip is not that point.


BRK-B — Berkshire Hathaway — ROLLING REVIEW
Conviction: 7/10 | Status: MONITORING | Sector: Financials/Conglomerate

WHAT THEY DO
Diversified conglomerate with three core engines: (1) Insurance (GEICO + reinsurance) which generates ~$170B+ of float invested across markets; (2) BNSF rail, BHE utilities, and a portfolio of operating businesses (manufacturing, services, retail); (3) the marketable securities portfolio (Apple, AmEx, BAC, Coca-Cola, etc.). The model is: collect insurance premiums, invest the float, allocate operating cash to either reinvestment, acquisition, or buyback at Buffett's discretion.

WHY IT'S INTERESTING NOW
Stock is -3.84% over 1Y, underperforming the S&P 500 in a market where AI-driven indices are at all-time highs. That underperformance is the thesis — when the rest of the market is paying for narrative, Berkshire is sitting on ~$325B in T-bills earning ~5%, which means ~$16B in pretax interest income alone while waiting for dislocations. The Q1 2026 8-K (filed 2026-05-07) likely contains updated operating data — flagged as a known data gap that needs a primary-source pull.

BULL CASE
- Capital allocation optionality at scale: $325B cash earning ~5% generates passive income while preserving optionality for any market dislocation.
- Insurance float continues to compound: GEICO underwriting has materially improved, and reinsurance pricing is firm.
- Hedge against AI froth: If the AI trade rolls over, BRK is one of the few large-cap vehicles with both the cash and the discipline to buy aggressively.

BEAR CASE
- Buffett succession: Buffett is 95. Abel is competent operationally, but the market may apply a "Buffett premium" discount on transition.
- Size is the enemy of returns: capital allocation at $1T+ scale with diminishing high-return opportunities is genuinely harder.
- Data quality issues persist (yfinance shows P/B of 0.00096 — clearly a data error; true P/B ~1.5x).

KEY METRICS: ~$325B cash/T-bills | Float ~$170B+ | True P/B ~1.5x | 1Y return -3.84%. Differentiator: the only mega-cap vehicle structurally positioned to deploy aggressively into a drawdown.

BOTTOM LINE: 7/10 holds — this is a portfolio hedge as much as an offensive position, and underperformance in an AI tape is consistent with the thesis, not a violation of it.


📋 TARGET LIST STATUS

Ticker Status Conviction Sector
LITE RECOMMEND 8/10 Tech (Optics)
MSFT RECOMMEND 8/10 Tech (Software)
NVDA MONITORING 8/10 Semis
TSM MONITORING 8/10 Semis
AMD RECOMMEND 7/10 Semis
ANET RECOMMEND 7/10 Networking
AVAV RECOMMEND 7/10 Defense
AVGO MONITORING 7/10 Semis
FCX RECOMMEND 7/10 Materials
GLW RECOMMEND 7/10 Optics
RKLB RECOMMEND 7/10 Space
MELI RECOMMEND 7/10 LatAm e-comm
MP HIGH_CONVICTION 7/10 Rare Earths
AAPL, ADBE, APPF, BRK-B, COHR, FSLR, GOOG, KNSL, LLY, PDD, TDG MONITORING 7/10 Various
AFRM, BABA, CARR, CIEN, CSCO, DE, ENPH, ESTC, ETN, FTNT, GEV, GRAB, MRVL, MU, NOW, PANW, PGNY, SYM, TSLA, UNH, UUUU, VRT, VST, ASTS MONITORING 6/10 Various
MKL MONITORING 5/10 Insurance

Changes today: TDG added at 7/10 (initiation — high-quality industrial compounder). DINO added then immediately dropped at 5/10 (cyclical at peak; below threshold). SOFI dropped at 6/10 (displaced by higher-conviction names). Notable conviction watch: ENPH +50% over 30 days but still 6/10 — the move is real but warrants a fundamentals re-check, not an automatic upgrade. FTNT +47.89% over 30 days similarly — chasing the move would violate process.


💼 YOUR PORTFOLIO

Ticker Action Conviction Note
$AAPL HOLD 8/10 +481% on cost basis. Core compounder; iOS 27 cycle ahead. No reason to trim.
$GOOGL STRONG HOLD 9/10 +25%. AI narrative + Waymo + Search resilience. Highest conviction holding.
$MKL HOLD 7/10 +99.5%. Berkshire-lite compounder; recent revenue contraction (-16.9% TTM) is the watch item.
$BABA HOLD 8/10 +9.5%. Burry-aligned, Trump-China thaw is a tailwind. Earnings May 13 — needs primary-source pull.
$FSLR HOLD 8/10 +18%. US solar manufacturing premium intact; +20.86% over 30 days is constructive.
$UNH HOLD 6/10 +20.9%. Recovered from 52W low; valuation re-rating is happening but conviction stays 6 until thesis fully confirms.
$ISRG HOLD 7/10 -22.2%. The painful one. Thesis intact; price weakness is not a thesis violation.
$TSLA HOLD 5/10 +2.2%. Conviction is low; robotics/autonomy must deliver. Hold but don't add.
$AVAV, $AVGO, $MP, $SYM PENDING Analysis to be built on next run. Flagging for follow-up.

⚠️ WATCH LIST

  • $ENPH (+50.22% over 30d): The move is dramatic for a name at 6/10. Need to verify whether this is fundamentals (channel inventory clearing, ITC reinstatement read-through from FSLR) or just beta. Trigger
Chat with Meridian
Ask anything about your portfolio
Hey William 👋 Ask me anything about your portfolio, a specific stock, Bitcoin, or the market. I have context on your current positions and theses.