Technical Analysis for traders Formula was removed
Last versions were
php56-trader requires the following formulae to be installed:
autoconf 2.69 Automatic configure script builder
ta-lib 0.4.0 Tools for market analysis
libtool 2.4.6_1 Generic library support script

Recent formula history

ilovezfs php56: migrate to homebrew/core (#4835)
Sebastien Bramille php56-trader: 0.4.0 (new formula)

Formula code at GitHub