A few weeks back I wrote about the close linkage between the Dow Transports and Industrials. At the time, both were threatening their spring lows. Now both are testing their June highs (see first chart). A Dow close through that barrier (combined with a similar upside breakout in the Transports) would constitute an intermediate term Dow Theory buy signal. Two of the biggest contributors to the Dow's recent strength are General Motors and IBM. The second chart shows GM trading at a new five-month high after climbing above its 200-day moving average earlier in the week. Although IBM is still well below its 200-day line, it's climbed to a new three-month high this week (see the last chart). It looks like money is starting to nibble at some previously-neglected blue chips.