Deep backwardation in T-Bonds?

Quote from granville:

I've noticed that when the yield curve is inverted, that the t-bill futures chain also inverts (goes into contango).

Why is this?

BC price trades inverse to rates.
 
Quote from atticus:

BC price trades inverse to rates.

atticus, please post a chart. God knows you're better at it than I am. (seriously, if I do it, I'll show price instead of yield, and the scale will be wrong).
 
Quote from atticus:

BC price trades inverse to rates.

Atticus, yes indeed price of bonds and interest rates share an inverse relationship, and the data that I'm looking at show that clearly.

But that price/interest rate relationship does not affect contango/backwardization: when interest rates go up, prices go down - but the futures contracts are still in backwardization (sorry, I know wrong term here). And when interest rates fall, prices go up - but the futures contract are still in backwardization.

The only time I see t-bill futures go into contango is when the short term interest rates are higher than the longer term interest rates.

I'm trying to understand why the t-bill futures trade this way???
 
Quote from granville:

Atticus, yes indeed price of bonds and interest rates share an inverse relationship, and the data that I'm looking at show that clearly.

But that price/interest rate relationship does not affect contango/backwardization: when interest rates go up, prices go down - but the futures contracts are still in backwardization (sorry, I know wrong term here). And when interest rates fall, prices go up - but the futures contract are still in backwardization.

The only time I see t-bill futures go into contango is when the short term interest rates are higher than the longer term interest rates.

I'm trying to understand why the t-bill futures trade this way???

Convergence on duration.
 
The futures don't pay a yield, so they're discounted to spot to account for the zero-coupon (i.e. spot EDs). As the curve inverts, the futures will trade at a sequential premium ("contango") on duration due to the -convexity of the curve, provided there are no kinks.

The relationship between the futures and yield curve will resemble a volatility cone; +convexity on futures while -convexity on yield, with the slope relating to the swap.
 
This cme tutorial explains it pretty well: http://www.cmegroup.com/trading/interest-rates/files/Understanding_US_Treasury_Futures.pdf

Specifically page 28 and it is very close to what nazzdack mentioned. Here's the overview:

"In a normal upwardly sloping yield
curve environment where long-term rates exceed short-term rates, there is
a positive result to buying and carrying a bond on a leveraged basis. In
other words, financing costs (represented by short-term rates) are less than
the payouts on the security (represented by long-term rates). As such,
“positive carry” prevails and bond futures can be expected to trade at
successively lower and lower levels in deferred months."

The same is true but opposite when the yield curve inverts.. cost of carry becomes negative and the futures contracts go into contango.
 
Quote from crgarcia:

If you try to hedge log bonds with a short future, backwardation even completely erases all interests to be received by holding T-Bonds.

I know this suggest a lack of demand for all the Bonds being issued.

Short a calendar spread?

Actually, per the tutorial I posted above, you don't erode "all" of your interest earned, just the "long term" portion. Here's what the tutorial says about it...

"Consider the
implications of a hedge, specifically, by selling futures against a long-term
bond, one commits (at least temporarily) to the delivery of the security in
the short-term. In other words, one effectively turns a long-term
investment into a short-term investment. Accordingly, one cannot expect
to earn a long-term rate of return but rather a short-term rate of return."

In today's very low interest rate environment, your returns on a such a hedge would indeed be very small, but not zero.
 
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