#Ahr999EntersBottomBuyingZone $BTC

Ahr999 is back under 0.45, the zone many long term buyers call the bottom buying zone. Before I decide what that means, I want to open the index up and see what is inside, because the math tells a more useful story than the label.

What the index actually is

It multiplies two ratios. The first is today’s price divided by the 200 day average cost, which is what you would have paid buying a fixed amount every day for 200 days. The second is today’s price divided by a long term growth estimate, a curve fitted to Bitcoin’s history. Readings under 0.45 are the buy zone, 0.45 to 1.2 is the steady accumulation range, and above 1.2 is the expensive zone.

The important point is that price appears twice in the formula. That means the index moves roughly with the square of price. A 10% fall in Bitcoin cuts the index by about 19%, since 0.9 times 0.9 is 0.81. It looks calm but it is actually very sensitive.

Where the lines sit in price terms

The reported 200 day cost is around 72,700. Working backwards from recent readings, the growth estimate comes out around 183,000. Those are my own estimates, so treat the next numbers as rough. With those inputs, the index equals 0.45 at about 77,500, which is why it flipped below 0.45 as Bitcoin slid under that level. It would equal 0.30 near 63,300 and 0.27 near 60,000. At today’s price near 74,600, the index is around 0.42.

What happened the last times

The index first dropped below 0.45 on February 1, after 839 days above it. It then went lower, hitting 0.27 on February 6, and was around 0.287 in late June with Bitcoin near 59,600. So the first signal was early by a wide margin. From a reading near 0.43, reaching the 0.27 area needs only about a 20% fall in price, by my math. That is not a rare move for Bitcoin.

One report also notes that the index has spent about 655 days in total below the buy zone. The zone can last a long time.

What the index cannot see

It is built from past prices and a fitted curve, so it knows nothing about tomorrow’s inflation report, hike odds near 80% or ETF outflows. Those outflows were about $1.28 billion last week. The growth curve is also a model, and models can overstate fair value as cycles mature. It tells me whether price is cheap compared with its own history, not whether sellers are done.

My chart

Bitcoin is at 74,582. The 200 day average sits at 73,170, which is 1.9% below, and 73,539 is 1.4% below. Above are 75,500 at 1.2% higher, 77,020 at 3.3% higher and 77,568 at 4.0% higher. Notice that 77,568 sits almost exactly where the index crosses 0.45. A daily close above it would take the index back out of the zone. The price is also only about 2.5% above the 200 day cost, so this is a thin cushion. RSI is about 35.

An illustration, not a plan

Say someone splits a buy into four equal parts at 77,500, 70,000, 63,300 and 60,000. The average cost would be about 67,700, which is roughly 9% below today’s price. That is what staggered entries do: they give up the chance of a perfect entry in exchange for a lower average if the fall continues. If price rebounds instead, they leave part of the money unspent.

My take: the index says Bitcoin is cheap against its own history, and I take that seriously. But the earlier signal arrived months before the actual low, so I treat 0.45 as a place to start paying attention, not a place to commit everything. I’m watching 73,170 on a close, tomorrow’s inflation print and whether ETF flows turn.

Not financial advice.

Do you treat the buy zone as an entry signal or as an early warning? And do you prefer to scale in slowly, or wait for the 73,170 line to break first?
@Gate_Square