Does anyone know on what basis Caterpillar $CAT+2.4% is losing almost 6% in premarket? The results don't look bad at first glance.

Caterpillar Inc.
CAT
$256.76
$6.04
+2.41%
Capital Structure
Market Cap
130.7B
Enterpr. Val.
161.3B
Valuation
P/E
14.6
P/S
2.0
Dividends
Yield
1.9%
Payout
27.7%
Perhaps a worse outlook within the construction and mining sectors?
The construction industry could theoretically have a bull run,but at the same time I still feel that the downturn will not last that long. A lot depends on what fed rates
I haven't found anything about it, but I have noticed the decline and I want to look at the company in more detail.