Sunday, September 13, 2026
Published by Viking Sats, LLC (Georgia)
This is general research, not investment, tax, or legal advice.
1. What Viking Sats is
Viking Sats is a research brief for high-income W-2 professionals — physicians, pilots, engineers, partners — who have a real job and want a grown-up crypto playbook. It is not a Discord, not a trade desk, and not a personal alert service. We write about Bitcoin and Ethereum and the listed products most readers actually use: spot ETFs, brokerage accounts, IRAs. Same public watchlist for every reader. General research, not advice.
2. What mattered this week
Issue 1 closed Sunday evening August 30 near $78,500 Bitcoin. Sunday morning September 13, Coinbase and Yahoo both printed near $76,820–$76,825 — about 2.1 percent softer than that Sunday print. The seven-day window was wider than the net change: on Coinbase, roughly a September 6 high near $80,560 and a September 11 low near $76,030 (Yahoo’s seven-day band was similar, high near $80,430 / low near $76,160). Ethereum Sunday morning sat about $2,482 (Coinbase / Yahoo), roughly flat to slightly firmer versus Issue 1’s ~$2,470–$2,475 Sunday evening — with a wider week that included a September 11 Coinbase high near $2,667 and a September 10 low near $2,404.
ETF flows did not go one direction. After the August 28 Bitcoin-fund outflow (−$201.8 million) that ended a nine-day streak, the next session (August 31) took in $216.7 million (TFTC). September 2–4 then added about $1.01 billion. September 8–10 gave about $449 million back over three sessions (TFTC; Farside/CryptoTimes ≈ −$449.5 million). September month-to-date through September 10 was still a net +$320.7 million (TFTC). Ether funds were choppier: about +$120 million September 2–4, about −$19 million September 8–10 (TFTC / provisional Sep 10).
The larger Treasury long-end liquidity-support buybacks started in the window that opened September 9. The first expanded operation reported September 10 accepted about $5.19 billion of up to $6 billion in 10- to 20-year coupons (Treasury / secondary reporting of that op). That is process, not a price target.
The calendar that matters next week is the Fed. The FOMC meets September 15–16 — a projections meeting with a new Summary of Economic Projections. After Friday’s August CPI (headline +0.4% m/m, 3.4% y/y; core +0.3% m/m), secondary reports of CME FedWatch put September hike odds in the high-80s to about 91% (up from roughly 71% as of September 11), with hold the rest. Those odds will still move with any remaining data before the meeting. Chair Warsh’s August 28 Jackson Hole line still frames the tape: prices as the “predominant focus,” 12-month PCE 3.7 percent, six-month change 4.1 percent. Same week, Senate Daily Press still lists a cloture vote on the motion to proceed to the CLARITY Act (H.R. 3633) for Tuesday September 15 at 2:15 p.m. — sixty votes to take the bill up, not final passage.
3. The useful frame this week: the SEP, not the streak
Issue 1’s frame was size for the Friday. This week’s frame is size for the calendar.
A $1 billion inflow week and a $450 million outflow week can both be true in the same September. Neither answers the question the FOMC will put on the table: where the Committee thinks rates and inflation land in the new projections. Bitcoin and the spot ETFs will reprice on that tape the way they did after Jackson Hole — not because a Discord called it, but because the two-year and risk assets share a screen.
A practical rule, not a recommendation: treat the next decision date as September 17 (the day after the meeting), not the last green or red ETF day. If the position only made sense while September 2–4 was printing nine-figure inflows, it was sized for a streak. Streaks break. Meetings do not. Account location (taxable vs IRA) still matters; that is the paid layer later, not this free letter.
4. Public watchlist (facts, not recommendations)
Same list for every reader. Sunday morning September 13 prints — not a buy list, not an alert.
Bitcoin (BTC-USD): ~$76,820–$76,825 Sunday morning Sep 13 (~8:16 AM ET; Coinbase product/bid-ask and Yahoo). ~7-day Coinbase high ~$80,560 (Sep 6) / low ~$76,030 (Sep 11). Issue 1 Sunday eve Aug 30 ~$78,500.
iShares Bitcoin Trust (IBIT): $43.77 close Fri Sep 11 (Yahoo); 0.25% expense ratio. (U.S. equity markets closed for the weekend.)
Fidelity Wise Origin Bitcoin (FBTC): $67.25 close Fri Sep 11 (Yahoo); 0.25%.
Ethereum (ETH-USD): ~$2,482 Sunday morning Sep 13 (Coinbase / Yahoo). Issue 1 Sunday eve ~$2,470–$2,475. ~7-day Coinbase high ~$2,667 (Sep 11) / low ~$2,404 (Sep 10).
iShares Ethereum Trust (ETHA): $19.16 close Fri Sep 11 (Yahoo); 0.25%.
U.S. spot Bitcoin ETFs (TFTC): Aug 28 −$201.8M (streak break); Aug 31 +$216.7M; Sep 2–4 ≈ +$1.01B; Sep 8–10 ≈ −$449M (three-day outflow); Sep MTD through Sep 10 +$320.7M. Ether funds: Sep 2–4 ≈ +$120M; Sep 8–10 ≈ −$19M.
5. What we will cover next
Issue 3 (Sunday September 20) is the FOMC recap and the new SEP — what the Committee published, how FedWatch moved, and whether Bitcoin ETF flows stayed positive after the meeting week. CLARITY cloture is process on the same calendar; we will report the vote result, not a price thesis. Taxable vs IRA remains queued for the free teaser on September 27 and the paid layer from October 4.
If you have a real job, you do not need a new thesis every Sunday. You need the week’s facts, one constraint that survives a Fed week, and a date for the next actual decision. That is the brief.
Viking Sats, LLC — Georgia. This is general research, not investment, tax, or legal advice.
Sources: Coinbase Advanced Trade BTC-USD / ETH-USD product, best bid-ask, and daily candles (retrieved ~8:16 AM ET Sep 13, 2026); Yahoo Finance chart API BTC-USD, ETH-USD, IBIT, FBTC, ETHA (same window; ETF closes Fri Sep 11); TFTC Bitcoin ETF Flows August & September 2026 (SoSoValue / issuer); CryptoTimes / Farside (Sep 10 flow cross-check); U.S. Treasury long-end buyback window from Sep 9 / Sep 10 op (~$5.19B of $6B); CME FedWatch via secondary reports Fri–Sun Sep 12–13 (high-80s to ~91% hike after August CPI; ~71% as of Sep 11); August CPI secondary reports (headline +0.4% m/m, 3.4% y/y; core +0.3% m/m); Warsh Jackson Hole Aug 28, 2026; U.S. Senate Daily Press (retrieved Sep 13 — CLARITY cloture Tue Sep 15, 2:15 p.m.). Fact table: /workspace/viking-sats/issue-02-facts.md.