NZ Dollar Slides Against Australian Dollar After Rate Hold

• New Zealand's dollar slid the most in nine years against its Australian peer.
• The Reserve Bank of New Zealand unexpectedly kept policy rates on hold.
• Cost pressures across the Tasman accelerated, contributing to the currency movement.
• The rate split between the two countries drove the biggest currency movement in nine years.
• The unexpected decision by the RBNZ threw markets off balance.