This chapter interprets Virginia Woolf’s The Waves through the economic theory of John Maynard Keynes. Keynes’s The General Theory of Employment, Interest, and Money waxes nostalgic for a world of industrial capital where people with good characters invest in respected businesses over the long term. Keynes blames the “great slump” on a system of financial speculation made possible by the modern corporation that encourages investors to anticipate and value the vacillations of popular opinion instead of sound business practices. This chapter argues that Woolf’s novel encodes the logic of financial speculation as described by Keynes in her depiction of characters who redefine themselves according to fluctuating social configurations. The resulting novelistic poetics constitute an aesthetic of volatility characteristic of high modernism that anticipates the emergence of affective intensity as the dominant value form of our own era of capitalism.