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Bitcoin Is Crashing — So Why Is My System Buying Altcoins?
Something strange is happening underneath this crypto selloff. It happened in June as well.
Bitcoin is getting hammered.
Altcoins are getting hammered.
And yet my automated portfolio system has quietly started buying a handful of altcoins.
At first glance, that sounds completely backwards.
Until you stop measuring everything in dollars. That’s where this gets interesting.

Bitcoin Dominance Shows the Average — Not the Leaders
From roughly November 6 through November 12, Bitcoin dominance climbed as the broader market came under pressure. On average, that meant Bitcoin was holding up better than the altcoin market. You can see the divergence develop in the chart below.
But here’s the twist: while Bitcoin dominance was rising, the Mainspring Portfolio Manager was starting to detect a few individual ALT/BTC entry signals. These weren’t necessarily coins rising in USD. They were coins showing relative strength against Bitcoin, even while their own dollar prices were declining.
Think of market-wide dominance as white light and the individual ALT/BTC ratios as a prism. The broad market statistic gives us the combined beam. Monitoring each ratio separately helps reveal the different colours — and the exceptions hiding inside an ugly average.
Then Bitcoin Dominance Reversed
Around November 12–14, the recent rise in Bitcoin dominance gave way to a sharp decline, while Bitcoin itself was still falling. That combination deserves attention, but it doesn’t automatically prove that money is flowing into altcoins or that an altseason has begun. Relative market capitalization can change simply because some coins are losing value more slowly than others.

Look at how the blue Bitcoin price and the BTC dominance movement separate on the next closer view. Depending on chart scaling, that difference can be surprisingly difficult to judge by eye. The important question is not just whether an altcoin is red or green in dollars; it’s whether its ratio to Bitcoin is improving.

Here’s the Weird Part: Losing Dollars While Gaining Satoshis
Take the BGB example from these charts. BGB/USDT is clearly in a downtrend. If you watched only the dollar chart, you’d probably ask: Why would anyone want to own that?
Now compare that with BGB/BTC. The ratio has been rising and holding much of its recent gain. It tells a very different story. BGB isn’t necessarily strengthening against the dollar — it’s strengthening relative to Bitcoin.
This means a position can fall in USD value while rising in BTC-denominated value. In plain English: if both Bitcoin and an altcoin fall, but Bitcoin falls faster, the same altcoin holding represents more satoshis than before. That’s relative outperformance, not a guaranteed realized profit.
And that is the spread our system is built to monitor. Put the ALT/BTC ratio underneath those two USD price charts and the divergence becomes much easier to see.
Two Dashboards. Two Very Different Questions.
The AltSeason CoPilot updates ALT/USDT observations once per day. It asks: How are the tracked altcoins behaving against a dollar stablecoin? Its recent snapshot is still dominated by exit states. The November 13 panel, for example, shows 70 Exit, 4 Alerts and 1 Partial — hardly a picture of broad-based enthusiasm.

The Mainspring Portfolio automation evaluates completed 12-hour ALT/BTC ratio candles and can fire trades on its twice-daily signal cycle. It asks a different question: Which individual coins are gaining momentum against Bitcoin?
Its basket distribution shows that some tracked coins have begun shifting toward stronger BTC-relative classifications even as the dollar-based view remains weak. That’s the central divergence. Wider tracking can give us more chances to discover such exceptions — although more coins also mean more noise, fees and false signals.

What Could Be Driving This Divergence?
These are preparations for statistical possibilities, not predictions nor a study of the fundamental causes.
First, broad risk-off selling can drag down both Bitcoin and alts, while differences in selling pressure make a few ALT/BTC ratios rise.
Second, traders are likely rotating selectively among crypto assets during the dump instead of buying the entire altcoin market.
Third, leverage liquidations and thin order books can amplify short-lived dumps that later reverse.
The Next Few Days Will Test the Signal

I don’t know the future. I don’t even try to predict whether these early relative-strength readings will hold because my opinion is not required.
If they reverse, the system will take care of the exit and incur trading costs that I’ll track and report on.
If the spread keeps widening in favour of the selected altcoins, those early entries could improve performance relative to holding Bitcoin alone. The future won’t yet tell us which outcome we’ll get, and the news doesn’t get it right very often either.
Prediction is fools gold.
What excites me is not the promise of a perfect entry on one coin. It’s to monitor a broad basket and capture a bit of those extreme movers. Now, with the Mindspring Portfolio, I can watch the system implement my simple (but a lot of manual work) plan.
Instead of spending hours staring at separate charts and trying to spot tiny differences – I see the system working.
Two new sponsors have already picked up the Mainspring Portfolio system, and this offering may already be closed by the time you are reading this. If having your ALT/BTC signals tracked and managed automatically could free you from constant chart watching, put your name on the waiting list for the next opening.
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Disclaimer: This post is purely objective observation without prediction and not financial advice. No one knows what prices will do next. Always do your own research and manage your risk.
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