Arena Blog

"Stocks have recovered from every war" is true — for one country. After the April 1940 high the Dow needed four years and nine months to get back to even, in 1914 the exchange was closed for four and a half months, and St Petersburg, Vienna, Tokyo and Shanghai are missing from the statistics because their exchanges ceased to exist. Across 39 markets, a diversified investor is down in real terms after 30 years in 12 % of cases.

Across 18 midterm years since 1954 the S&P fell 17.7 percent from its high on average — but only 5 of them had a 19-percent drop inside the second half. What the number measures, how much of it reaches Bitcoin (through the S&P, not through yields), and why Bitcoin's own midterm-year bears come from the halving.

The Richmond Fed tested 30 years of income data against a strict definition: a K appeared in 2002–06 and 2010–13, not after COVID. Why short stretches still last, and why no average can show one.

Trump announced tariffs, $19 billion was force-sold — and three days later the market looked normal again. Sorting the occasion from the cause.

The 2/28 mortgage worked because the collateral appreciated. A GPU cannot do that. What the 2006 comparison holds up to once you put the numbers side by side.

If money grows faster than output, where does it go if not into consumption? The question has a good answer. It just isn't the one in the chart everybody posts.

The Bitcoin liquidity fair value chart shows R²=0.85 — and claims BTC is "348% above fair value". We ran the cointegration test. It fails.

Look-ahead bias corrupts backtests when macro data is revised after the fact. Why we rebuilt our regime history to be strictly point-in-time — and proved it.

The copper/gold ratio is sold as a macro and Bitcoin signal. What it actually measures, where it fails, and why a viral "Bitcoin cycle" indicator built on it has look-ahead bias.

A good strategy in the wrong market phase still loses. Six free tools give you the market's temperature — Arena Pulse, macro regime, on-chain, the Bitcoin cycle, sentiment, and the signal traffic light. All share one honest trait: they describe the present, they don't predict the future.

The US Treasury increasingly funds itself with short-dated T-bills. That lowers cost today — and builds rollover risk for tomorrow. A methodical read on the mechanics behind the headlines.

A chart claims to "prove" liquidity leads crypto. The thesis is serious — the chart isn't proof. What it shows, what it doesn't, and how to test it honestly.