spot checks
2013
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top 3 held 49% of market,car companies with sizeable battery making investment (Nissan, Mitsubishi, BYD was 36% of market)
2015
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top 3 held 31% of market, ,car companies with sizeable battery making investment (BYD, Nissan, Mitsubishi was 26% of market)
2017
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top 3 held 24% of market, ,car companies with sizeable battery making investment (BYD, Nissan, Mitsubishi, was 15% of market), tesla gigafactory starts production but most automotive cells probably still from Panasonic Japan.
2019 half yearly
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top 3 held 25% of market, ,car companies with sizeable battery making investment (Tesla, BYD, Nissan was 31% of market)
Its preliminary, but overall it seems to indicate that Tesla is current outperform, but that the trend is for reducing market share for the top 3. It also seems the automotive opportunity to profitably self make li ions cells is passing, really only 2 automotive seem capable to do that, BYD, and to a lessor extent Tesla (demarcation between what is Tesla vs what is Panasonic is blurry, similar to Nissan vs AESC). After spending a bomb of money on cell production, Mercedes walked away. Mitsubishi is hands off, Nissan is clearly open to 3rd party providers.
So unlike engine production, it seems that cell production is following more the IT precedent that fab plants are separate to phone/computer companies.
Nice post! Looking at the top 3 EV makers through time is a good way to explore historical development.
By my calculation the top 3 in 2019 YTD have 33% market share. So the trend to low concentration has sharply reversed. Indeed if Tesla holds 15% and the top 3 is to be less than 25%, then that means #2 and #3 can only share 10% combined. This implies at least a 10% difference between Tesla and #3. My expectation is that BYD and a few other Chinese OEM are way to competitive to allow Tesla to hold such a commanding lead. So we could see the top 3 compete fiercely to hold at least 30% of the market for the next ten year. That is they will lead the pack in cannibalizing ICE sales until EVs dominate the auto market.
I could see the top 3 EV makers owning 20% of the auto market in about ten years. So that's my hunch at this point. I obviously cannot prove it. But IF the top 3 hang on to 30% of the EV market until the EV market gains 2/3 of the auto market, that implies the top 3 hold potentially more than 20% of the auto market. (BYD might still be producing a few ICE vehicles at that time.) Gaining the first 2/3 of the auto market is when top EV makers will be able to grab market share the fastest and easiest. So I think this will be the most exciting leg of the race.