could tesla be profitable as opex scales with revenue? sure it could. it depends on the scale. for example if you assume opex is a linear function of revenue, with opex = fixed expenses + slope * revenue, then the scaling parameter [m] is the key value. if that slope is meaningfully below the gross margin level then you can see nice operating leverage and profit growth as revenues grow.
here is what the shorts see, with opex on the y axis and revenue on the x axis, opex clearly is mostly linear with a high slope parameter. and so tesla is basically a dead man walking.
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i think the analysis is confounded by the acquisition of solarcity and spend for energy related things. so i attempt to separate solarcity and tesla spend, which is actually fairly straightforward for most of the post acquisition period (3 quarters have direct disclosures).
with tesla auto-only opex on the y axis and auto-only revenue on the x axis, you can see there is a step function, not a linear function. opex climbs rapidly w/revenue to a new level while they spend ahead of a product ramp. then opex flattens w/revenue as the new product scales up. there is not a single linear function with a single slope parameter, it's a series of line segments with varying slopes, and the slope is much flatter as revenue ramps much higher.
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you can see where i have modeled the future in my modeling.
which chart do you want to bet on? that is a primary difference between the longs and the shorts.
there are not accounting tricks i know that could be used to show a profit for 1/2 quarters if the company's financial situation continues to decline. that's because the losses right now are so large that it would take herculean accounting manipulation to swing to a profit from the current level. and it would be too obvious.